1.

If 12 men and 16 boys can do a piece of work in 5 days; 13 men and 24 boys can do it in 4 days, then the ratio of the daily work done by a man to that of a boy is

A. 2 : 1
B. 3 : 1
C. 2 : 2
D. 5 : 4
Answer» B. 3 : 1


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