30 men can do a work in 40 days. When should 14 men leave the work so that the entire work is completed in 40 days after they leave the work?  Answers:
A) 87 days
B) 16 days
C) 55 days
D) 44 days
E) 22 days

Rationale: "total work to be done = 30 * 40 = 1200 let 14 men leave the work after ' p ' days , so that the remaining work is completed in 40 days after they leave the work . 40 p + ( 14 * 40 ) = 1200 40 p = 640 = > p = 16 days answer : b"
Answer: B