Two cyclists A and B are cycling around a circular track of 150 m leng

1.	Two cyclists A and B are cycling around a circular track of 150 m length with respective speeds of 10 m/sec and 15 m/sec. What is the time taken by them to meet for the first time right at their start
Answer» 30 seconds The TIME taken by A to complete ONE round = 150/10 = 15 seconds. The time taken by B to complete one round = 150/15 = 10 seconds. hence, After a time which is the LCM of (15,10) seconds, they will MEET right at the starting point i.e. after 30 seconds.

Two cyclists A and B are cycling around a circular track of 150 m length with respective speeds of 10 m/sec and 15 m/sec. What is the time taken by them to meet for the first time right at their start

Answer»

30 seconds

The TIME taken by A to complete ONE round = 150/10 = 15 seconds.
The time taken by B to complete one round = 150/15 = 10 seconds.
hence, After a time which is the LCM of (15,10) seconds, they will MEET right at the starting point i.e. after 30 seconds.

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Two cyclists A and B are cycling around a circular track of 150 m length with respective speeds of 10 m/sec and 15 m/sec. What is the time taken by them to meet for the first time right at their start

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