Question

Problem Description - 12/15
Two trains A and B start at the same time from points P1 and P2 towards each other, and after crossing, they take 25 seconds and 9 seconds to reach P2
and P1, respectively
What is the ratio of the speed of A to B?

Options
3:5
1:2
5:3
2:1
​

Answer 1

Given :- Two trains A and B start at the same time from points P1 and P2 towards each other, and after crossing, they take 25 seconds and 9 seconds to reach P2

and P1, respectively . What is the ratio of the speed of A to B?

Answer :-

3:5

1:2

5:3

2:1

Let us assume that, speed of A is S1 and Speed of B is S2 .

so,

→ S1 : S2 = √(Time taken by B after crossing) : √(Time taken by A after crossing)

→ S1 : S2 = √(9) : √(25)

→ S1 : S2 = 3 : 5 (A) (Ans.)

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