39.
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?
A:
Rs. 400
B:
Rs. 300
C:
Rs. 360
D:
Rs. 380
The answer is:
A
