Twenty four men can do a work in 35 days. How many men are required to complete the work in 21 days? Choose the correct choice from the following answers.
A) 33	B) 40	C) 99	D) 277	E) 28
We have M1 D1 = M2 D2   So, 24 * 35 = M2 * 21 =&gt; M2 = 40.   Answer:40
<result>B</result>
Twenty four men can do a work in 35 days. How many men are required to complete the work in 21 days?