Question

The janitorial staff can clean 5 rooms in 6 hours. How many rooms can they clean in 18​ hours?

Answer 1

15 rooms

Explanation:

18/6 = 3 so multiply 3 times 5 and that equals 15!

Answer 2

15 rooms.

Explanation:

since they can clean 5 rooms in 6 hours, and it's asking how many rooms they can clean in 18 hours:

5/6=x/18

solve for x:

6x=90

x=15

Or you could've just multiplied 5 by 3 since 6(3)=18.