P is 40% more efficient than Q. P can complete a work in 24 days. If P and Q work together, how many days will it take to complete the same work?	Choose the correct choice from the following answers
A) 8  B) 9  C) 11  D) 14  E) 15
The work done by P in 1 day = 1/24   Let work done by Q in 1 day = q   q × (140/100) = 1/24   q = 100/(24×140) = 10/(24×14)   The work done by P and Q in 1 day = 1/24 + 10/(24×14) = 24/(24×14)= 1/14   P and Q together can do the work in 14 days.   The answer is 14.
<result>D</result>
P is 40% more efficient than Q. P can complete a work in 24 days. If P and Q work together, how many days will it take to complete the same work?