4 men can complete a task in 48 hours and 4 boys in 40 hours l. How many hours would three boys and 1 man working together take to complete the same task?
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Answer:
Given,
4men complete it in 48 hrs
therefore one man = 12 hrs
4 boys complete it in 40 hrs
one boy= 10 hrs
3boys and one man will complete it in
30 +12 =42 hrs
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