- A24
- B36
- C16
- D18
Step-by-Step Solution
Let B do 1 unit/day, so A does 2 units/day; together 3 units/day. Total work = units. A alone = 36/2 = 18 days.
Answer: D) 18
A is twice as efficient as B, and together they finish a piece of work in 12 days. A alone would finish it in how many days?
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