If 12 men and 16 boys can do a piece of work in 5 days and 13 men together will 24 boys can do it in 4 days. Compare the daily work done by a man with that of a boy.	Choose the correct choice from the following choices
A) 2:9  B) 2:1  C) 2:7  D) 2:5  E) 2:2
12M + 162:1 ----- 5 days   13M + 242:1 ------- 4 days   60M + 802:1 = 52M + 962:1   8M = 162:1 =&gt; 1M = 22:1   M: 2:1 = 2:1   Answer:2:1
<result>B</result>
If 12 men and 16 boys can do a piece of work in 5 days and 13 men together will 24 boys can do it in 4 days. Compare the daily work done by a man with that of a boy.