Mathematics, 21.06.2019 12:30 rakanmadi87

2men and 7 boys can do a piece of working 4 days. it is done by 4 men and 4 boys in 3 days how long would it take for 1man or one boy to do it alone

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2men and 7 boys can do a piece of working 4 days. it is done by 4 men and 4 boys in 3 days how long...