Two trains starting at the same time from two stations 300 km apart and going in opposite directions cross each other at a distance of 180 km from one of the stations. What is the ratio of their speeds?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 3 : 2
One of the trains reaches the crossing point by covering 180 km and the other reaches by covering 300 - 180 = 120 km
Time taken by both trains to reach the crossing point is the same
Distance = Speed × Time
Since time is constant, Distance will be directly proportional to Speed
Distance = Speed
Distance ratio = 180 : 120 = 3 : 2
So Speed ratio also = 3 : 2