Question

180 people go bowling the ratio of adults to children is 5:4. How many adults and how many children went bowling?

Answer 1

100 adults and 80 children

sum the parts of the ratio 5 + 4 = 9 parts

divide 180 by 9 to find 1 part of the ratio

`(180)/(9)` = 20 ← 1 part of the ratio

5 parts = 5 × 20 = 100 ← number of adults

4 parts = 4 × 20 = 80 ← number of children