Question

Two car X and Y speed 124.2 Km/hr and 120 Km/hr. Car X Reached 7 seconds before Car Y.What is the distance between the two places from which car X and Y started to the final position?

Answer 1

Explanation:

let the distance be S

time taken by X is S/124.2

time taken by Y is S/120

now S/120 - S/124.2 = 7/3600 hours

solving this we get S = (7*120*124.2)/(3600*4.2)

S = 6.9km