Question
joe and jim are picking oranges in an orange grove.joe can fill his sack with oranges in 20 minutes.Jim can fill his sack with oranges in 30 minutes They need one more sack at the end of the day.Working together,how long will it take them to fill the sack?
Answers
Henry
T=(T1*T2)/(T1+T2)=(20*30)/(20+30)=12 min.