Question

Mary delivers 32 newspapers to her customers in 25 minutes. These deliveries represent 64% of her customers. How many customers does Mary have? 16 20 50 57

Answer 1

50

Explanation:

I took the test online in K12 and it said that 50 is the correct answer.

Answer 2

If 32 customers is 64% of Mary's customers, then set up a simple ratio:

`(32)/(64) = (?)/(100)`
Using cross-multiplication:

`(32*100)/(64)` = 50
Mary has 50 customers.