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
If 32 customers is 64% of Mary's customers, then set up a simple ratio: \(\frac{32}{64} = \frac{?}{100}\) Using cross-multiplication: \(\frac{32*100}{64}\) = 50 Mary has 50 customers.
