Question

How to solve time and distance three metro rails metro a,b,c start from a metro station s at the same time towards the destination 2km away from s . Mtero a reaches the destination when metro b is still 200m away from the destination metro b reaches the destination when metro c is still 100 m away from the destionation . How far from the destionation is metro when metro a reaches the destination

Answer 1

For this question, we have to assume that all the trains move at a constant speed. If they move at a constant speed, the relative velocity between train a and b , and c stays the same through out the entire journey. If the constant velocity between the trains remains constant so will the distance between them. If train b is 200m behind train a, and train c is 100m behind train b, then train a has to be 300 m ahead of train c. This means that train a reaches the destination when train c is still 300 m away from the destination.