A and B undertook a work for Rs. 6600. A alone can do that work in 25 days. B alone can do the same work in 30 days. They started and completed the work together. What will be the difference in the amounts (in Rs.) they will receive?
Show answer & explanation
Correct answer: B
Explanation
A's one-day work efficiency = 1/25
B's one-day work efficiency = 1/30
Ratio of work efficiencies = 1/25 : 1/30
= 30 : 25
= 6 : 5
Therefore, the division of the amount = 6 : 5
Total amount = ₹6600
A's share = 6600 × 6 / 11 = ₹3600
B's share = 6600 × 5 / 11 = ₹3000
Difference = 3600 - 3000 = ₹600