In a circular race of 500 m in length, A and B start with speeds of 4 m/sec and 5 m/sec, respectively, simultaneously from the same point. After how much time will they meet for the first time at the starting point while running in the same direction?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 500 sec
Given that
The length of the circular track is 500 m
The speed of A is 4 m/s and the speed of B is 5 m/s
The relative speed of A and B when they running in the same direction = 5 - 4 = 1 m/s
They meet for the first time at the starting point = Length of circular track/Relative speed
⇒ 500/1 = 500 sec
Hence, They meet for the first time at the starting point in 500 seconds.