Question

Two trains are travelling towards each other. The distance between the trains initially is 400 km. After some time they meet at a distance of 150 km from one end. Find the ratio of the speed of the trains.

• A. 2:5
• B. 3:5
• C. 4:7
• D. 7:3
• E. None of these

Answer 1

The correct option is B 3:5

At some time T, they meet each other so,
$\frac{150}{a}=\frac{250}{b}$ (a and b are the speeds of the train respectively)
So, a:b = 3:5