Multiple choice

Directions: This problem consists of a question and two statements labelled A and B given below it. You have to decide whether the data provided in the statements is sufficient to answer the question and select the option accordingly. What was the average number of km per litre of petrol for a car during a certain trip? (A) The total cost of the petrol used by the car for the 180-km trip was Rs. 120. (B) The cost of the petrol used by the car for the trip was Rs. 12/litre.

  1. Statement (A) alone is sufficient but statement (B) alone is not.

  2. Statement (B) alone is sufficient but statement (A) alone is not.

  3. Both (A) and (B) together are sufficient, but neither of them alone is sufficient.

  4. Both statements independently are sufficient.

  5. Both (A) and (B) together are not sufficient.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Statement A gives total cost (120) and distance (180 km). Statement B gives cost per litre (12). Together, we find total litres used (120/12 = 10 litres) and then the average (180 km / 10 litres = 18 km/litre). Neither statement alone provides both the total fuel consumed and the total distance.

AI explanation

Statement A gives the total distance as 180 km and the total cost as Rs. 120, but without the cost per litre, the total litres consumed cannot be found. Statement B gives the cost per litre as Rs. 12, but provides no information about the total distance or total cost. By combining both statements, the total petrol used is 120 divided by 12, which equals 10 litres, and the average is 180 km divided by 10 litres, resulting in 18 km per litre.

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