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. 5000. With the help of C, they completed the work in 3 days. How much is to be paid to C? Choose the correct choice from the following answers:	A) s. 375	B) s. 425	C) s. 625	D) s. 800	E) s. 850
s. 625's 1 day's work = 1/3 - (1/6 + 1/8) = 1/3 - 7/24 = 1/24   A's wages : B's wages : s. 625's wages = 1/6 : 1/8 : 1/24 = 4: 3 : 1   s. 625's share (for 3 days) = Rs.	(3 * 1/24 * 5000) =Rs.625   Answer = s. 625
<result>C</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. 5000. With the help of C, they completed the work in 3 days. How much is to be paid to C?