Question

Ronald and Tim both did their laundry today Ronald does laundry every 6 days and Tim does laundry every nine days how many days will it be until Ronald and Tim both do laundry on the same day again

Answer 1

18

Explanation:

Answer 2

Find the least common multiple:
6*6*6=18
9*9=18

They will both do laundry on the same day on the 18th day.