If 5 men and 2 boys working together, can do three times as much work per hour as a man and a boy together. Find the ratio of the work done by a man and that of a boy for a given time?	Select the correct option.
A) 9:2	B) 5:2	C) 1:2	D) 1:4	E) 1:8
M + 2B = 3(1M + 1B)   5M + 2B = 3M + 3B   2M = 1B   The required ratio of work done by a man and a boy = 1:2   ANSWER:1:2
<result>C</result>
If 5 men and 2 boys working together, can do three times as much work per hour as a man and a boy together. Find the ratio of the work done by a man and that of a boy for a given time?