Question

Two Bikers are riding a circular path. The first rider completes a round in 12 minutes. The
second rider completes a round in 18 minutes. If they both started at the same place and time and
go in the same direction, after how many minutes will they meet again at the starting point?​

Answer 1

After 36 minutes they will meet at the starting point

Answer 2

Take Lcm of 12 & 18
12 = 2^2×3
18 = 2×3^2
LCM = 2^2×3^2 =36 minutes