On a circular path of 432 m, Soham and Rohan start running from the same point and in same direction at the speed of 12 m/sec and 9 m/sec, respectively. Find the time in which they will meet for the first time.
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 144 seconds.
Relative speed = 12 – 9 = 3 m/sec
Distance to meet again = Length of circular path = 432 m
Time = 432 ÷ 3 = 144 seconds