In a circular race of 625 m, X and Y start from the same point, at the same time, and speeds of 36 km/h and 54 km/h, respectively. When will they meet again for the first time on the track if they are running in opposite directions?
Show answer & explanation
Correct answer: C
Explanation
The Correct answer is option 3 i.e. In 25 seconds.
Given that,
The length of a circular track is 625 m
The speed of X = 36 km/h
The speed of Y = 54 km/h
The relative speed of X and Y when they travel in opposite direction = 36 + 54 = 90 km/h = 25 m/s
According to the question,
They will meet again for the first time on the track = length of circular track/Relative speed = 625/25 = 25 seconds.