Correct option is B
Given:
A alone can do a piece of work in 6 days.
B alone can do the same work in 8 days.
A and B, with the help of C, completed the work in 3 days.
The total payment for the work is ₹ 3,200.
Solution
Total work LCM of 6 , 8 and 3 = 24
Efficiency of A =
Efficiency of B =
Efficiency of A + B + C =
Efficiency of C = 8 - ( 4 + 3) = 1
Work done by A in 3 days = 4 = 12
Work done by B in 3 days =
Work done by C in 3 days = = 3
Work is proportional to wages,
Wages ratio = 12 : 9 : 3
= 4 : 3 : 1
(4 + 3 + 1) unit = 3200
1 unit = 400
Then B wages = 3 = 1200