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?
Answers
Answered by
3
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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