Kemal G. answered • 04/11/17

Tutor

4.8
(5)
Patient and Knowledgeable Math and Science Tutor with PhD

Hi Olivia,

it takes him 10 minutes to complete 12 problems

if he completes 12 problems in 10 mins

he will complete x problems in 60 minutes

x = 12*6 = 72 problems in one hour

Five more hours at this rate, he will have completed 5*72 = 360 problems