Question

Two trains, one from A to B and the other from B to A, start simultaneously. After they meet, the trains reach their destinations after 9 hours and 25 hours respectively. The ratio of their speeds is:

• A. 2:3
• B. 5:3
• C. 6:7
• D. 9:6
• E. 1:5

Answer 1

The correct option is B

5:3

Let us name the trains as A and B. then, (A's speed): (B's speed) = $\sqrt{b}:\sqrt{a}=\sqrt{25}:\sqrt{9}=5:3$