Pihu and Aayu are running on a circular track of diameter 28 m. Speed of Pihu is 48 m/s and that of Aayu is 40 m/s. They start from the sam… — Answer & Discussion

Pihu and Aayu are running on a circular track of diameter 28 m. Speed of Pihu is 48 m/s and that of Aayu is 40 m/s. They start from the same point at the same time in the same direction. When will they meet again for the first time?

A8 seconds
B11 seconds
C13 seconds
D14 seconds

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Discussion 1

CCommunity07 May 2019

As per the given data,

Length of the circular track = π × d = π × 28 m

Given that Pihu and Aayu are running in the same direction at the same point

We know that when two persons A and B running around a circular track of length L mts with speed of a, b m/s in the same direction

They meet each other at any point on the track = L/(a - b) sec

= 28 π/(48 - 40)

= 11 sec