Problema Solution
If 4 copiers can copy 25,000 sheets in 10 hours. At the same rate, how many hours will take 12 copiers to copy 300,000 sheets?
Answer provided by our tutors
4 copiers can copy 25,000 sheets in 10 hours thus
1 copier will copy 25,000 sheets in 4*10 = 40 hours
1 copier copies 25,000 sheets in 40 hour he will need 30,000/25,000 times more time to copy 30,000 that is
40*(30,000/25,000) = 48 hours
1 copier copies 30,000 sheets in 48 hours
12 copiers will be 12 times faster or they will finish the job in
48/12 = 4 hours.