Question

on the opening day at a toy store, every third customer gets a ball and every fourth customer gets a stuffed animal . sixty people come to the store how many get both a ball and a stuffed animal

Answer 1

$x-\ all\ customers\\\\x=60\\\\ \frac{1}{3}x+\frac{1}{4}x=\frac{1}{3}*60+\frac{1}{4}*60=\frac{60}{3}+\frac{60}{4}=\\ 20+15=35\\\\ 35\ customers\ got\ both\ ball \ and\ stuffed\ animial.$