Question

2 men and 7 boys can do work in 4 days whereas 4 men and 4 boys can do same work in 3 days how long will it takes for a man and a boy to do it​

Answer 1

Answer:

4(2M+7B) = 3(4M+4B)

12M - 8M = 28B - 12B

M/B = 4/1

Total work = 4(2*4+7*1) = 60 unit

Done by 1M+1B in = 60/5 = 12 days .(Ans.)

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