MATH DOUBT ---

Question

There is a circular path around a sports field. Ron takes 18 minutes to drive one round of the field, while Tim 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

18 = 6x3

12 = 6x2

6x3x2 = 36 = the least common multiple. 12x3 = 18x2

in 36 minutes Ron will complete 2 rounds, while Tim completes 3, as they meet again