Question

Patrick can shovel the snow of the driveway in two hours,and his young brother in three hours.How long would it take them to shovel the snow together?

Answer 1

Answer:

1hr12min

Step-by-step explanation:

In one hour

Patrick =1/2

Bro=1/3

Both =1/2+1/3=5/6

5/6=1hr

6/6=1*6/6 / 5/6

=6/5

=1.2hrs

0.2*60=12

1hr12min

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