Question

A mom's age was 46 and her son's age was 21 in 1997. After some years the mom's age is 6 times her son's age. What are their ages?

Answer 1

Answer:

let y = no. yrs ago mom was 6 times as old as the son

46-y=6(21-y)

46-y=126-6y

-y+6y=126-46

5y=80

y=80/5

y=16yrs

1997-16= 1981 mom was 6 times

confirm this by son finding how old was 16yr ago

46-16 = 30

21-16=5

6×5 =30