Question

Ben exercises every 3 days and Isabel every 2 days. Ben and Isabel both exercise today. How many days in the next 30 days will they both exercise on the same day?

Answer 1

They will both exercise on the same day for 5 days in the next 30 days.

Explanation:

Ben exercises every 3 days

Isabel exercises every 2 days

LCM of 2 and 3 = 6

30/6 = 5

Answer 2

5 days they will both exercise together

Explanation:

LCM of 2 and 3 is 6.

So, on the 6th day they will exercise together.

30/6 = 5