The sum of the ages of Tom and Kristina is 124 years. 12 years ago, Tom's age was 4 times Kristina's age. How old is Tom now?

Answer 1

T + K = 124

T-12 = 4(K-12) = 4K -48

T = 4K -48+12 = 4K-36

T = 124-K = 4K-36

5K = 160

K = 160/5 = 32 years old now for Kristina

T =124-32 = 92 years old for Tom

12 years ago they were 80 and 20

80 = 4 times 20