Three years ago, A was 5 times as old as B. If B is now 7 years old, how old is
Practice Questions
Q1
Three years ago, A was 5 times as old as B. If B is now 7 years old, how old is A now?
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Questions & Step-by-Step Solutions
Three years ago, A was 5 times as old as B. If B is now 7 years old, how old is A now?
Correct Answer: 23
Step 1: Identify B's current age, which is given as 7 years old.
Step 2: Calculate B's age three years ago by subtracting 3 from 7. So, B was 7 - 3 = 4 years old.
Step 3: According to the problem, three years ago, A was 5 times as old as B. Since B was 4 years old then, calculate A's age by multiplying 4 by 5. So, A was 5 * 4 = 20 years old.
Step 4: Now, to find A's current age, add 3 years to A's age from three years ago. So, A's current age is 20 + 3 = 23 years old.
