Banking Exams Quant — Question 1804
Question
A is twice as efficient a workman as B, and together they can finish a work in 18 days. In how many days can A alone finish it?
- 24 days
- 27 days
- 30 days
- 36 days
Correct answer
B — 27 days
Explanation (English)
Efficiency ratio A:B = 2:1, combined = 3 units/day. Total work = 3 × 18 = 54 units. A does 2 units/day, so A alone = 54/2 = 27 days.
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