Problem of the week: Pushy Pushy

5 hours= 300 mins                    0.9 x 70= 63
5x60=300                                0.10 x 300= 30

63 + 30= 93

Since it takes 70 minutes to cut 90% of the lawn with a powerful motor and 5 hours with the push motor. I turned 5 hours into minutes because it would have been easier, then I multiplied the percent with the time, then we add the time it took for 90%, with the time it took for 10% and got my answer.