Two trains A and B travel from points X to Y and the ratio of the speeds of A to that of B is 2 : 7. Find the ratio of time taken by A and B to reach from X to Y


A) 2 : 5

B) 3 : 5

C) 3 : 8

D) 7 : 2

Correct Answer:
D) 7 : 2

Description for Correct answer:

Speed is inversely proportional to time,

Given that (speed of A): (Speed of B ) = 2 : 7

(Time taken by A):( Time taken by B)
= \( \Large \frac{1}{2} : \frac{1}{7} = 7 : 2\)


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