Father and son

Father is three times older than his son. Twelve years ago, the father was nine times more senior than the son. How old are father and son?

Correct answer:

x =  48
y =  16

Step-by-step explanation:


x = 3y
x-12 = 9(y-12)

x = 3•y
x-12 = 9•(y-12)

x-3y = 0
x-9y = -96

x = 48
y = 16

Our linear equations calculator calculates it.



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Most Popular comments:
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Math student
when I was 11 my father was 35 year old. Now, father has three times older then me. How old is she? pls solution the problem

2 years ago  6 Likes
Showing 2 comments:
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Math student
when I was 11 my father was 35 year old. Now, father has three times older then me. How old is she? pls solution the problem

2 years ago  6 Likes
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