A is twice as good a workman as B, and together they finish a piece of work in 18 days. In how many days will A finish the work alone?
Q1. A is twice as good a workman as B, and together they finish a piece of work in 18 days. In how many days will A finish the work alone?
Answer: 27 days
Explanation: Since A is twice as efficient as B, A does 2/3 of the work and B does 1/3. A alone would take 18 × (3/2) = 27 days.