Question

A mother is 46 years old and her son is 21 years old in years 1997.In which year was the mother six times as old as the son?​

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 = 16 yrs ago

:

1997 - 16 = 1981 Mom was 6 times son

:

:

Confirm this by finding how old each was 16 yr ago

46 - 16 = 30

21 - 16 = 5

6 * 5 = 30

Step-by-step explanation:

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