A alone can do a piece of work in 6 days and B alone in 8 days. A and B undertook to do it for Rs. 3200. With the help of C, they completed the work in 3 days. How much is to be paid to C?	Pick one
A) Rs. 450  B) Rs. 600  C) Rs. 800  D) Rs. 375  E) Rs. 400
C's 1 day's work = 1/3 - (1/6 + 1/8) = 1/24.   A's wages : B's wages : C's wages = 1/6 : 1/8 : 1/24 = 4 : 3 : 1.   C's share (for 3 days) = Rs. ( 3 x 1/24 x 3200) = Rs. 400.   CORRRs. 400CT OPTION "Rs. 400".
<result>E</result>
A alone can do a piece of work in 6 days and B alone in 8 days. A and B undertook to do it for Rs. 3200. With the help of C, they completed the work in 3 days. How much is to be paid to C?