Question

Tom always keeps his 4 gardens clean. He takes 20 minutes to clean a single garden. How much time will it take to clean all four gardens

Answer 1

80 minutes = 1 hour and 20 minutes

Work: 4 × 20 = 80 minutes - 60 (to equal 1 hour) = 20  So your answer will be 1 hour and 20 minutes<span />

Answer 2

If each garden takes 20 minutes to clean, it will take him (20 x 4) to clean the gardens.

20 x 4 = 100

80 minutes

or 1 hour and 10 minutes.