What will help our argument 'see light' (line 17), according to the passage?

In context, which version of sentences (7) and (8) best combines them into a single sentence?

Passage 2 mainly deals with

Directions: A brief passage or a statement is given and a question is asked, based on the information provided in the passage/statement. Critically examine the five alternative answer options marked (1) to (5) and choose the best answer. There are fundamentally two possible changes in an economy that will each cause inflation unless other compensating changes also occur. These changes are either reductions in the supply of goods and services or increases in demand. In a pre banking economy the quantity of money available, and hence the level of demand, is equivalent to the quantity of gold available. If the statements above are true, then it is also true that in a pre banking economy

Directions: A brief passage or a statement is given and a question is asked, based on the information provided in the passage/statement. Critically examine the five alternative answer options marked (1) to (5) and choose the best answer. So as to calculate the GDP growth across the globe, individual countries' growth rates are weighted in terms of their share of global output. Using Purchasing Power Parity, as the IMF does, the global economy has grown by an average of 5% over the past five years, its strongest pace since the early 1970s. This is primarily due to the emerging economies growing by 7.5% a year (vis a vis only 2.3% in the developed economies), and they account for around 45% of global GDP. Given the above information, which of the following would be definitely FALSE?

The paragraph following the last one given here, if it were there, would LEAST likely discuss which of the following?

Directions: The passage below is followed by a question. Answer the question on the basis of what is stated or implied in the passage.

In a major step toward helping paralytic victims walk again, Duke University researchers have announced that they had proved monkeys can use their brainpower to control the walking patterns of robots. The investigators implanted Idoya, a rhesus monkey, with electrodes which gathered signals from her brain's motor and sensory cortex cells as she ambled along on a specially built child-size treadmill. The electrodes recorded the cells' responses as the monkey walked on the treadmill at different speeds; simultaneously, sensors on Idoya's legs tracked their patterns of movement. The information was transmitted real time from their lab in Durham, to control the commands of a humanoid robot in Kyoto, Japan.

Through the electrodes in her brain, the researchers discovered that some neurons fire at different phases and frequencies, depending on their role in the process. During the experiment, the robot continued to move for several minutes after Idoya stopped strolling on her treadmill indicating something else also.

The team’s goal is to finally enable real-time direct interfaces between a brain and electronic and mechanical devices that could be used to restore sensory and motor functions lost through injury or disease. The team hopes that one day soon, they will also master sufficient syntax to talk back to the brain, which would enable them, for instance, to build a human prosthetic arm laden with sensors to send tactile feedback into the somatosensory cortex of its user.

The experiment in monkey-to-robotic motion is the latest in a long series of studying the primate brain's ability to stimulate robotic arms through neural signals. In 2000 Nicolelis and his colleagues described how they had reliably translated the raw electrical brain activity of an owl monkey named Belle into signals that successfully directed the actions of robotic arms based both at Duke and at an MIT lab 965 kilometers away in Cambridge. Belle's tiny hand moved a joystick left or right to correspond with a horizontal series of lights on a display panel in a Duke lab; both robot arms followed suit.

What is the function of the fourth paragraph in relation to the passage as a whole?

Directions: The passage below is followed by a question. Answer the question on the basis of what is stated or implied in the passage.

In a major step toward helping paralytic victims walk again, Duke University researchers have announced that they had proved monkeys can use their brainpower to control the walking patterns of robots. The investigators implanted Idoya, a rhesus monkey, with electrodes which gathered signals from her brain's motor and sensory cortex cells as she ambled along on a specially built child-size treadmill. The electrodes recorded the cells' responses as the monkey walked on the treadmill at different speeds; simultaneously, sensors on Idoya's legs tracked their patterns of movement. The information was transmitted real time from their lab in Durham, to control the commands of a humanoid robot in Kyoto, Japan.

Through the electrodes in her brain, the researchers discovered that some neurons fire at different phases and frequencies, depending on their role in the process. During the experiment, the robot continued to move for several minutes after Idoya stopped strolling on her treadmill indicating something else also.

The team’s goal is to finally enable real-time direct interfaces between a brain and electronic and mechanical devices that could be used to restore sensory and motor functions lost through injury or disease. The team hopes that one day soon, they will also master sufficient syntax to talk back to the brain, which would enable them, for instance, to build a human prosthetic arm laden with sensors to send tactile feedback into the somatosensory cortex of its user.

The experiment in monkey-to-robotic motion is the latest in a long series of studying the primate brain's ability to stimulate robotic arms through neural signals. In 2000 Nicolelis and his colleagues described how they had reliably translated the raw electrical brain activity of an owl monkey named Belle into signals that successfully directed the actions of robotic arms based both at Duke and at an MIT lab 965 kilometers away in Cambridge. Belle's tiny hand moved a joystick left or right to correspond with a horizontal series of lights on a display panel in a Duke lab; both robot arms followed suit.

Which of the following is/are NOT correct in the context of this passage?

(1) Fundamentally speaking, there appears to be great similarity at the functional level between the observations made in both the Bell and the Idoya cases. (2) The Aurora experiment proves that thoughts can, on their own, enable robotic movement if the relevant signals duly reach the recipient part even in the absence of actual physical contact. (3) It is only the signals that enable particular movements and it is the neurons that generate these signals. (4) Scientists have made sufficient headway in sending tactile feedback back to the user's brain.

Directions: The passage below is followed by a question. Answer the question on the basis of what is stated or implied in the passage.

In a major step toward helping paralytic victims walk again, Duke University researchers have announced that they had proved monkeys can use their brainpower to control the walking patterns of robots. The investigators implanted Idoya, a rhesus monkey, with electrodes which gathered signals from her brain's motor and sensory cortex cells as she ambled along on a specially built child-size treadmill. The electrodes recorded the cells' responses as the monkey walked on the treadmill at different speeds; simultaneously, sensors on Idoya's legs tracked their patterns of movement. The information was transmitted real time from their lab in Durham, to control the commands of a humanoid robot in Kyoto, Japan.

Through the electrodes in her brain, the researchers discovered that some neurons fire at different phases and frequencies, depending on their role in the process. During the experiment, the robot continued to move for several minutes after Idoya stopped strolling on her treadmill indicating something else also.

The team’s goal is to finally enable real-time direct interfaces between a brain and electronic and mechanical devices that could be used to restore sensory and motor functions lost through injury or disease. The team hopes that one day soon, they will also master sufficient syntax to talk back to the brain, which would enable them, for instance, to build a human prosthetic arm laden with sensors to send tactile feedback into the somatosensory cortex of its user.

The experiment in monkey-to-robotic motion is the latest in a long series of studying the primate brain's ability to stimulate robotic arms through neural signals. In 2000 Nicolelis and his colleagues described how they had reliably translated the raw electrical brain activity of an owl monkey named Belle into signals that successfully directed the actions of robotic arms based both at Duke and at an MIT lab 965 kilometers away in Cambridge. Belle's tiny hand moved a joystick left or right to correspond with a horizontal series of lights on a display panel in a Duke lab; both robot arms followed suit.

The experiment described above is ultimately an attempt to

Directions: The passage below is followed by a question. Answer the question on the basis of what is stated or implied in the passage.

In a major step toward helping paralytic victims walk again, Duke University researchers have announced that they had proved monkeys can use their brainpower to control the walking patterns of robots. The investigators implanted Idoya, a rhesus monkey, with electrodes which gathered signals from her brain's motor and sensory cortex cells as she ambled along on a specially built child-size treadmill. The electrodes recorded the cells' responses as the monkey walked on the treadmill at different speeds; simultaneously, sensors on Idoya's legs tracked their patterns of movement. The information was transmitted real time from their lab in Durham, to control the commands of a humanoid robot in Kyoto, Japan.

Through the electrodes in her brain, the researchers discovered that some neurons fire at different phases and frequencies, depending on their role in the process. During the experiment, the robot continued to move for several minutes after Idoya stopped strolling on her treadmill indicating something else also.

The team’s goal is to finally enable real-time direct interfaces between a brain and electronic and mechanical devices that could be used to restore sensory and motor functions lost through injury or disease. The team hopes that one day soon, they will also master sufficient syntax to talk back to the brain, which would enable them, for instance, to build a human prosthetic arm laden with sensors to send tactile feedback into the somatosensory cortex of its user.

The experiment in monkey-to-robotic motion is the latest in a long series of studying the primate brain's ability to stimulate robotic arms through neural signals. In 2000 Nicolelis and his colleagues described how they had reliably translated the raw electrical brain activity of an owl monkey named Belle into signals that successfully directed the actions of robotic arms based both at Duke and at an MIT lab 965 kilometers away in Cambridge. Belle's tiny hand moved a joystick left or right to correspond with a horizontal series of lights on a display panel in a Duke lab; both robot arms followed suit.

The author’s use of the phrase 'indicating something else also' in the 2^nd paragraph implies most likely which of the following?

Directions: The passage below is followed by a question. Answer the question on the basis of what is stated or implied in the passage.

In a major step toward helping paralytic victims walk again, Duke University researchers have announced that they had proved monkeys can use their brainpower to control the walking patterns of robots. The investigators implanted Idoya, a rhesus monkey, with electrodes which gathered signals from her brain's motor and sensory cortex cells as she ambled along on a specially built child-size treadmill. The electrodes recorded the cells' responses as the monkey walked on the treadmill at different speeds; simultaneously, sensors on Idoya's legs tracked their patterns of movement. The information was transmitted real time from their lab in Durham, to control the commands of a humanoid robot in Kyoto, Japan.

Through the electrodes in her brain, the researchers discovered that some neurons fire at different phases and frequencies, depending on their role in the process. During the experiment, the robot continued to move for several minutes after Idoya stopped strolling on her treadmill indicating something else also.

The team’s goal is to finally enable real-time direct interfaces between a brain and electronic and mechanical devices that could be used to restore sensory and motor functions lost through injury or disease. The team hopes that one day soon, they will also master sufficient syntax to talk back to the brain, which would enable them, for instance, to build a human prosthetic arm laden with sensors to send tactile feedback into the somatosensory cortex of its user.

The experiment in monkey-to-robotic motion is the latest in a long series of studying the primate brain's ability to stimulate robotic arms through neural signals. In 2000 Nicolelis and his colleagues described how they had reliably translated the raw electrical brain activity of an owl monkey named Belle into signals that successfully directed the actions of robotic arms based both at Duke and at an MIT lab 965 kilometers away in Cambridge. Belle's tiny hand moved a joystick left or right to correspond with a horizontal series of lights on a display panel in a Duke lab; both robot arms followed suit.

The author ends the passage on a note of

PASSAGE – I
The passage below is followed by a question based on its content. Answer the question on the basis of what is stated or implied in the passage.

Migratory birds often move in linear flight formations called echelons. Typically, we find V and J-type structures, which are the most readily recognized flock echelons, nevertheless other variations to these major patterns can also be found. A true V-shaped echelon is, in reality, less common than a J formation, studies conducted on several species reveal.
Why do the birds fly in formations? Two well-corroborated and complementary explanations are available right now. A major idea is to save energy by capitalizing on the upwash vortex fields generated by the bird wings in the front. The second - to facilitate the job of orientation and communication among the flying birds. These two explanations are not necessarily mutually exclusive, and in fact, both are supported by many studies. The relative importance of each of them, no doubt, changes as various factors, like the season of the year or the reason behind  individual flights, change. During local feeding flights meant to locate food, for instance, careful orientation and collision avoidance are probably much more important than the conservation of energy. However, during long-distance migration, though orientation and communication remain important, but the case for conservation of energy by optimization of its position holds greater importance for each bird in the flock.

Where should the birds position themselves in relation to others to conserve the most energy as they fly in the air? Fluid dynamics and energy wave configuration calculations supply the answer. Analysts, using photography, have determined bird positions and found them to almost always be located to enable the bird to earn some energetic advantage. However, the birds are not always at the expected optimal location, indicating that other factors also come into play.

Researchers have used the knowledge of birds, visual axes, "blind spots" and visual fields to pinpoint the best locations for a bird in a flock to maintain optimal visual positioning. The actual positions are usually having a positive correlation with these predictions but are, again, not always perfect. The positions of birds have been classified and it has been found that some individuals occupy positions to satisfy the energy conservation principle; others enjoy better visual contact placement, while the rest do not apparently respond to either benefit or are in a position so as to gain some advantage from both the benefits available.

The passage could have been most appropriately titled in which of the following ways?

PASSAGE – I
The passage below is followed by a question based on its content. Answer the question on the basis of what is stated or implied in the passage.

Migratory birds often move in linear flight formations called echelons. Typically, we find V and J-type structures, which are the most readily recognized flock echelons, nevertheless other variations to these major patterns can also be found. A true V-shaped echelon is, in reality, less common than a J formation, studies conducted on several species reveal.
Why do the birds fly in formations? Two well-corroborated and complementary explanations are available right now. A major idea is to save energy by capitalizing on the upwash vortex fields generated by the bird wings in the front. The second - to facilitate the job of orientation and communication among the flying birds. These two explanations are not necessarily mutually exclusive, and in fact, both are supported by many studies. The relative importance of each of them, no doubt, changes as various factors, like the season of the year or the reason behind  individual flights, change. During local feeding flights meant to locate food, for instance, careful orientation and collision avoidance are probably much more important than the conservation of energy. However, during long-distance migration, though orientation and communication remain important, but the case for conservation of energy by optimization of its position holds greater importance for each bird in the flock.

Where should the birds position themselves in relation to others to conserve the most energy as they fly in the air? Fluid dynamics and energy wave configuration calculations supply the answer. Analysts, using photography, have determined bird positions and found them to almost always be located to enable the bird to earn some energetic advantage. However, the birds are not always at the expected optimal location, indicating that other factors also come into play.

Researchers have used the knowledge of birds, visual axes, "blind spots" and visual fields to pinpoint the best locations for a bird in a flock to maintain optimal visual positioning. The actual positions are usually having a positive correlation with these predictions but are, again, not always perfect. The positions of birds have been classified and it has been found that some individuals occupy positions to satisfy the energy conservation principle; others enjoy better visual contact placement, while the rest do not apparently respond to either benefit or are in a position so as to gain some advantage from both the benefits available.

Which of the following questions is / are not answered by the above passage?

1. Does energy conservation have the same importance during short and long flights respectively?
2. Do the bird formations always have a leader having higher social status?
3. Does the season of the year play a role in determining whether a particular theory will be able to account for bird behaviour in an echelon or not?

   PASSAGE – I
   The passage below is followed by a question based on its content. Answer the question on the basis of what is stated or implied in the passage.

   Migratory birds often move in linear flight formations called echelons. Typically, we find V and J-type structures, which are the most readily recognized flock echelons, nevertheless other variations to these major patterns can also be found. A true V-shaped echelon is, in reality, less common than a J formation, studies conducted on several species reveal.
   Why do the birds fly in formations? Two well-corroborated and complementary explanations are available right now. A major idea is to save energy by capitalizing on the upwash vortex fields generated by the bird wings in the front. The second - to facilitate the job of orientation and communication among the flying birds. These two explanations are not necessarily mutually exclusive, and in fact, both are supported by many studies. The relative importance of each of them, no doubt, changes as various factors, like the season of the year or the reason behind  individual flights, change. During local feeding flights meant to locate food, for instance, careful orientation and collision avoidance are probably much more important than the conservation of energy. However, during long-distance migration, though orientation and communication remain important, but the case for conservation of energy by optimization of its position holds greater importance for each bird in the flock.

   Where should the birds position themselves in relation to others to conserve the most energy as they fly in the air? Fluid dynamics and energy wave configuration calculations supply the answer. Analysts, using photography, have determined bird positions and found them to almost always be located to enable the bird to earn some energetic advantage. However, the birds are not always at the expected optimal location, indicating that other factors also come into play.

   Researchers have used the knowledge of birds, visual axes, "blind spots" and visual fields to pinpoint the best locations for a bird in a flock to maintain optimal visual positioning. The actual positions are usually having a positive correlation with these predictions but are, again, not always perfect. The positions of birds have been classified and it has been found that some individuals occupy positions to satisfy the energy conservation principle; others enjoy better visual contact placement, while the rest do not apparently respond to either benefit or are in a position so as to gain some advantage from both the benefits available.

   The leaders of these bird formations change with time, but it has not been possible to discover the causes, frequency and characteristics associated with these changes. Observations on a sustained basis of such flocks covering long distances in the air are very difficult. Several intuitive predictions about the choice of the formation leader that immediately come to mind are - age, experience, sex, condition and social status of the leaders, but so far researchers have been unable to overcome the logistic issues to put these hypotheses to test. Birds have been trained to fly in formation with small aircraft by some scientists; possibly their efforts will yield opportunities to test these hypotheses.

Which of the following statements is the writer most likely to agree with?

1. Bird formations vary in accordance with the bird species.
2. There is positive proof for the theories of bird formation and the position of bird within it
3. Energy conservation seems to be the overarching single factor behind bird formations during all flights.

   PASSAGE – I
   The passage below is followed by a question based on its content. Answer the question on the basis of what is stated or implied in the passage.

   Migratory birds often move in linear flight formations called echelons. Typically, we find V and J-type structures, which are the most readily recognized flock echelons, nevertheless other variations to these major patterns can also be found. A true V-shaped echelon is, in reality, less common than a J formation, studies conducted on several species reveal.
   Why do the birds fly in formations? Two well-corroborated and complementary explanations are available right now. A major idea is to save energy by capitalizing on the upwash vortex fields generated by the bird wings in the front. The second - to facilitate the job of orientation and communication among the flying birds. These two explanations are not necessarily mutually exclusive, and in fact, both are supported by many studies. The relative importance of each of them, no doubt, changes as various factors, like the season of the year or the reason behind  individual flights, change. During local feeding flights meant to locate food, for instance, careful orientation and collision avoidance are probably much more important than the conservation of energy. However, during long-distance migration, though orientation and communication remain important, but the case for conservation of energy by optimization of its position holds greater importance for each bird in the flock.

   Where should the birds position themselves in relation to others to conserve the most energy as they fly in the air? Fluid dynamics and energy wave configuration calculations supply the answer. Analysts, using photography, have determined bird positions and found them to almost always be located to enable the bird to earn some energetic advantage. However, the birds are not always at the expected optimal location, indicating that other factors also come into play.

   Researchers have used the knowledge of birds, visual axes, "blind spots" and visual fields to pinpoint the best locations for a bird in a flock to maintain optimal visual positioning. The actual positions are usually having a positive correlation with these predictions but are, again, not always perfect. The positions of birds have been classified and it has been found that some individuals occupy positions to satisfy the energy conservation principle; others enjoy better visual contact placement, while the rest do not apparently respond to either benefit or are in a position so as to gain some advantage from both the benefits available.

   The leaders of these bird formations change with time, but it has not been possible to discover the causes, frequency and characteristics associated with these changes. Observations on a sustained basis of such flocks covering long distances in the air are very difficult. Several intuitive predictions about the choice of the formation leader that immediately come to mind are - age, experience, sex, condition and social status of the leaders, but so far researchers have been unable to overcome the logistic issues to put these hypotheses to test. Birds have been trained to fly in formation with small aircraft by some scientists; possibly their efforts will yield opportunities to test these hypotheses.

The passage is structured like which of the following?

PASSAGE – I
The passage below is followed by a question based on its content. Answer the question on the basis of what is stated or implied in the passage.

Migratory birds often move in linear flight formations called echelons. Typically, we find V and J-type structures, which are the most readily recognized flock echelons, nevertheless other variations to these major patterns can also be found. A true V-shaped echelon is, in reality, less common than a J formation, studies conducted on several species reveal.
Why do the birds fly in formations? Two well-corroborated and complementary explanations are available right now. A major idea is to save energy by capitalizing on the upwash vortex fields generated by the bird wings in the front. The second - to facilitate the job of orientation and communication among the flying birds. These two explanations are not necessarily mutually exclusive, and in fact, both are supported by many studies. The relative importance of each of them, no doubt, changes as various factors, like the season of the year or the reason behind  individual flights, change. During local feeding flights meant to locate food, for instance, careful orientation and collision avoidance are probably much more important than the conservation of energy. However, during long-distance migration, though orientation and communication remain important, but the case for conservation of energy by optimization of its position holds greater importance for each bird in the flock.

Where should the birds position themselves in relation to others to conserve the most energy as they fly in the air? Fluid dynamics and energy wave configuration calculations supply the answer. Analysts, using photography, have determined bird positions and found them to almost always be located to enable the bird to earn some energetic advantage. However, the birds are not always at the expected optimal location, indicating that other factors also come into play.

Researchers have used the knowledge of birds, visual axes, "blind spots" and visual fields to pinpoint the best locations for a bird in a flock to maintain optimal visual positioning. The actual positions are usually having a positive correlation with these predictions but are, again, not always perfect. The positions of birds have been classified and it has been found that some individuals occupy positions to satisfy the energy conservation principle; others enjoy better visual contact placement, while the rest do not apparently respond to either benefit or are in a position so as to gain some advantage from both the benefits available.