Question

A teacher grades 3/4 of the class tests in 2 hours and 15 minutes. At this rate, how long will it take the teacher to grade all of the tests?

Answer 1

45 minutes per 1/4 of the class. 45 times 4 is equal to 3 hours.

Answer 2

3 hours

Explanation:

2 hours equals 120 minutes add 15 minutes you get 135 minutes when you divide 135/3 you get 45 minutes per quarter so 45*4=180 minutes 180/60=3