A is 3 times as old as B. Three years ago, A was 4 times as old as B. What is A's current age?
Q1. A is 3 times as old as B. Three years ago, A was 4 times as old as B. What is A's current age?
Answer: 27
Explanation: Let B's age be x, then A's age is 3x. Three years ago, 3x - 3 = 4(x - 3). Solving gives x = 9, so A's age is 27.