Question

Marc spent 1 4 of his monthly budget on food and 3 5 of his monthly budget on gasoline. The total amount he spent on food and gasoline was $272. What was Marc’s monthly budget?

Answer 1

Food = 1/4
gasoline = 3/5 
Total = 1/4 + 3/5 = 17/20

17/20 = 272
1/20 = 272 ÷ 17 = 16
20/20 = 16 x 20 = $320