Ramesh and Naresh start running on a circular track of length 1920 metres from the same point simultaneously in the same direction with speed of 40 m/sec and 64 m/sec. After how much time from the start will they meet for the first time anywhere on the track ?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 80 sec
Given that
The length of the circular track is 1920 m
The speed of Ramesh is 40 m/s
The speed of Naresh is 64 m/s
According to the question
The relative speed of Ramesh and Naresh when they run in same direction = 64 - 40 = 24 m/s
Formula used
Time = Distance of circular track/Relative speed
Calculation
TIme = 1920/24 = 80 sec
Hence, From the start, they will meet for the first time anywhere on the track after 80 seconds.