A is 50% as efficient as B.C does half of the work done by A and B together .If C along does the work in 40 days then A,B,C
together can do the work in?	Answers:
A) 15 1/4 days B) 16 days C) 13 1/3 days D) 25 2/5 days E) 17 1/3 days
A's 1 day's work:B's 1 day's work=150:100=3:2   let A's and B's 1 days work be 3x and 2x respectively   then 13 1/3 days's 1st days work=(3x+2x)/2=5x/2   5 x/2=1/40   x=1/100   A's 1 day work=3/100   B's 1 day work=1/50   13 1/3 days's 1 day work=1/40   (A+B+13 1/3 days)'s 1 day work=(3/100+1/50+1/40)=15/200=3/40   so A,B,13 1/3 days together can do the work in 40/3=13 1/3 days   Answer(13 1/3 days)
<result>C</result>
A is 50% as efficient as B.C does half of the work done by A and B together .If C along does the work in 40 days then A,B,C
together can do the work in?