Question

If 10 men (or) 18 boys can do a piece of work in 15 days, then 15 men and 13 boys together will do twice the work in

Answer 1

10men = 18 boy..

men/boy = 18/10 = 9/5. ,so men=9 boy=5

-now total work = 10(men)*18= 10*(9)*18= 1620

- so (15m+13b)*x = 1620

(15*9 + 13*5)*x = 1620

(135+65)*x =1620

x=1620/200

x= 81 ans