Multiple choice

There are two quantities provided in the following questions. You have to find out the values of the quantities and compare them according to the given codes as follows: Quantity I: Speed of boat in still water, if a man can travel 54 km downstream in 9 hours and 40 km upstream in 10 hours. Quantity II: Speed of boat in still water, if a man can travel 45 km downstream in 9 hours and the speed of stream is 1 kmph.

  1. Quantity I > Quantity II

  2. Quantity I ≥ Quantity II

  3. Quantity I < Quantity II

  4. Quantity I ≤ Quantity II

  5. Quantity I = Quantity II or the relation cannot be established
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Quantity I: Downstream speed = 54/9 = 6 kmph, upstream speed = 40/10 = 4 kmph. Boat speed = (downstream + upstream)/2 = (6+4)/2 = 5 kmph. Quantity II: Downstream speed = 45/9 = 5 kmph, stream speed = 1 kmph. Boat speed = downstream speed - stream speed = 5 - 1 = 4 kmph. Since 5 > 4, Quantity I > Quantity II.

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