Five years ago, Amy was three times older than Mike. If Mike is 10 years old now, how old is Amy?

Five years ago, Amy was three times older than Mike. If Mike is 10 years old now, how old is Amy?

Detailed Explanation

Mike is 10 years old now, so he must have been 5 years old five years ago. Amy was 3 times older than Mike five years ago, so Amy must have been 15 five years ago. Add 5 years to Amy’s age five years ago to calculate her age now. Amy is 15 + 5 = 20 years old now.