Question

if 12 men and 16 boys can do a piece of work in 5 days and 13 men and 24 boys can do it in 4 days compare the daily work done by man with that done by a boy

Answer 1

12m+16b)*5 : (13m+24b)*4
60m+80b : 52m+96b
60m-52m : 92b-80b
8m : 16b
m/b : 2/1
so, Ans is 2:1