1.

If 7 men and 4 boys can earn Rs. 10275 in 15 days and 8 men and 11 boys can earn Rs. 7280 in 7 days, in what time can 5 men and 9 boys earn Rs. 8820 ?

Answer»

12 days



Let the daily EARNING of MAN be x and that of BOY be y.
7X + 4y = 10275/15 = 685
7x + 4y = 685



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