Question

There is a circular path around a sports field. Soma takes 18 minutes to drive one round of the field, while Ravi takes 12 minutes for the same. Suppose they both start at the same point and at the same time, and go in the same direction. After how many minutes will they meet again at the starting point?

Answer 1

Hint: To find the time at which both Soma and Ravi meet at the starting point , we need to find the time at which both of the drivers complete the circular round together . Find the LCM of the time taken by each of them to find the required answer.

Complete step-by-step answer:

Observe that Soma takes 18 minutes to complete the circular round and Ravi takes 12 minutes to complete. We need to find the LCM of the times taken by them individually.

LCM of times taken by them = LCM of 12 and 18
= 36 minutes
Thus they will meet after 36 minutes at the starting point.

Note: In such types of questions, it is required to understand the basic concept working behind the circular movement of the drivers and the time intervals at which they complete the revolution around the field to get the required answer.