Some persons can do a piece of work in 12 days. Two times the number of such persons will do half of that work in	Choose the correct choice from the following answers
A) 9 B) 8 C) 4 D) 3 E) 1
Explanation:   Let x men can do the in 12 days and the required number of days be z   More men, Less days [Indirect Proportion]   Less work, Less days [3irect Proportion ]   Answer: 3) 3 days
<result>D</result>
Some persons can do a piece of work in 12 days. Two times the number of such persons will do half of that work in