A and B undertake to do a piece of work for Rs. 1200. A alone can do it in 6 days while B alone can do it in 8 days. With the help of C, they finish it in 3 days. Find the share of A. Answers.
A) 500
B) 600
C) 750
D) 800
E) None of them
C's 1 day's work = 1/3-(1/6+1/8)=24   A : B : C = Ratio of their 1 day's work = 1/6:1/8:1/24= 4 : 3 : 1.   A’s share = Rs. (1200 *4/8) = Rs.600, B's share = Rs. (1200 *3/8) = Rs. 450   C's share = Rs. [1200 - (300 + 225») = Rs. 150.   Answer is 600
<result>B</result>
A and B undertake to do a piece of work for Rs. 1200. A alone can do it in 6 days while B alone can do it in 8 days. With the help of C, they finish it in 3 days. Find the share of A.