A is twice as good as B, and together they finish a piece of work in 14 days. How many days will A take to finish the work alone?
Q1. A is twice as good as B, and together they finish a piece of work in 14 days. How many days will A take to finish the work alone?
Answer: 21 days
Explanation: Let's denote B's rate as x. Then, A's rate is 2x. Combined rate = x + 2x = 3x. They finish the work in 14 days, so 3x * 14 = 1 job. x = 1 / (3 * 14) = 1 / 42.