A is 3 times as old as B. 3 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. 3 years ago, A was 4 times as old as B. What is A's current age?
Answer: 18
Explanation: Let A's age be 'a' and B's age be 'b'. a = 3b and a - 3 = 4(b - 3). Solving these, a = 18, b = 6, 3 years ago A was 15 and B was 3.