.a machine a can print one thousand books in 10 hours, machine b can print the same number of books in 12 hours while machine c print them in 15 hours. all the machines are started at 9
a.m. while machine a is closed at 11
a.m. and the remaining two machines complete the work. approximately at what time will the work be finished
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Answer:
Step-by-step explanation:
Machine A print 1000 = 10 hours
In 1 hours = 1000 /10
= 100 print
It close at 11 pm= Machine A works 14 hours
Machine A prints 9 am to 11 pm = 14 * 100
1400 prints
Machine B= 12 hours = 1000 prints
1000 prints = 12 hours
1 prints= 12/ 1000
1400 prints = 12 /1000 * 1400
= 16 hrs 48 minutes
Machine complete the work at 1 :48 am
Machine c 15 hours = 1000
1000 = 15 hours
1 print = 15 /1000
1400 prints = 15/1000 * 1400
= 21 hours
= Machine complete the work at 6 :00 am
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