Question

If it took 5 hours to clean 10 houses, how many houses could be cleaned in 9 hours?

Answer 1

18 houses

Explanation:

First, find out how many houses they can clean in 1 hour.

10/5=2

They can clean 2 houses in 1 hour.

With this information, you can now multiply the number of houses in 1 hour by 9 hours to find out how many houses are cleaned in 9 hours.

9*2=18

Therefore they can clean 18 houses in 9 hours.