5 men and 2 boys working together can do four times as much work as a man and a boy. Working capacity of man and boy is in the ratio
Options
A) 1:2
B) 1:3
C) 2:1
D) 2:3
E) None of these
Explanation:   Let 1 man 1 day work = x   1 boy 1 day work = y   then 5x + 2y = 4(x+y)   =&gt; x = 2y   =&gt; x/y = 2/1   =&gt; x:y = 2:1   Option 2:1
<result>C</result>
5 men and 2 boys working together can do four times as much work as a man and a boy. Working capacity of man and boy is in the ratio