2 men and 4 boys can complete a work in 4 days. 5 men and 6 boys can complete the same work in 3 days. The work done by 2 boys is equal to the work of how many men?
Answers
A) 3
B) 4
C) 5
D) 6
E) 7
(2m + 4b)’s one day’s work = 1/4   (5m + 6b)’s one day’s work = 1/3   =&gt; (8m + 16b)’s one day’s work = (15m + 18b) ’s one day’s work   =&gt; 7 men’s work = 2 boy’s work   So, we should be employ 5 more men to be completed the work.   ANSWER:5
<result>C</result>
2 men and 4 boys can complete a work in 4 days. 5 men and 6 boys can complete the same work in 3 days. The work done by 2 boys is equal to the work of how many men?