Question

A walks around a circular field at the
rate of one round per hour while B runs around it at the rate of 6 rounds per hour.They start in the same direction from the same
point at 7.30 a.m. They shall first cross each other at:​

Answer 1

Answer: 7:42 am

Step-by-step explanation:

Since, A and B move in the same direction along the circle, so they will first meet, each other when there is a difference of one round between the two.

Relative speed of A and B =(6−1)=5 rounds per hour.

Time taken to complete one round at this speed =51​hr=12min.

Hence, They shall first cross each other at  7.42am.