Question

Imelda, Susan, and Clara are driving go-carts around a track. Imelda takes 14 minutes, Susan takes 18 minutes, and Clara takes 10 minutes to drive on lap. Suppose all three of them start together at a point and drive at their same speed. After how many minutes would all three meet again?

Answer 1

630 minutes.

Explanation:

That would be the lowest common multiple of 10, 14 and 18

10 = 2 x 5

14= 2 x 7

18 = 2 x 3 x 3

The LCM = 2 x 3 x 3 x 5 x 7

= 630.