Question

A math teacher graded 45 problems in 3/5 of an hour. At that rate, how many problems can she grade in 1 hour?

Answer 1

75 questions

Explanation:

`45` ÷
`(3)/(5)` of an hour

`(3)/(5) =36`

`45` ÷
`36` minutes

= 1.25

1.25 times 60 = 75 questions