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 options:
A) 2:7 B) 2:1 C) 2:4 D) 2:2 E) 2:8
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.