Question

Jerome takes a math course and a science course for summer school. For every 5 hours Jerome spends studying math, he studies science for 4 hours. If Jerome spent a total of 63 hours studying last week, then how long did he study math?

Answer 1

35 hours

Explanation:

maths : science

5 : 4

5 + 4 = 9

63/9 = 7

7 x 5 = 35

7 x 4 = 28

35 : 28