- A24
- B16
- C10
- D12
Step-by-Step Solution
Let B's rate be ; then A's rate is and , so . A alone rate = 2/24 = 1/12, i.e. 12 days.
Answer: D) 12
A is twice as efficient as B. Working together, they complete a piece of work in 8 days. In how many days can A alone complete the work?
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