Question

Colette loves to get manicures with her mom. In the past year, however, her mom has had 5 manicures for every 3 Colette has had. If Colette's mom has had 4 more manicures than Colette in the past year, how many manicures has Colette had?

Answer 1

Collette had 6 manicures done last year.

Explanation:

Since Collette's mom has 67% more manicures than Collette (2 more for every 3), and that difference represented 4 manicures in total, then:

let x be the number of manicures that Collette had during last year.

4 / x = 2/3

2x = 12

x = 6