Question

Ronald and Tim both did their laundry today. Ronald does laundry every 6 days and Tim does laundry every 9 days. How many days will it be until Ronald and Tim both do laundry on the same day again?

Answer 1

it would be 6 x 3 and 9 x 2 they both equal 18

Answer 2

Answer: 18 days.

Explanation:

Given: Ronald and Tim both did their laundry today. Ronald does laundry every 6 days and Tim does laundry every 9 days.

To find, number of days will it be until Ronald and Tim both do laundry on the same day again, we need to find the least common multiple of 6 and 9.

We know that 6×3=18 and 9×2=18

Thus, the least common multiple of 6 and 9=18

Therefore, after 18 days Ronald and Tim both do laundry on the same day again.