Question

peter is 35 years old. his son is 10 years old. how many years ago was peter 6 times older than his son

Answer 1

Let the number of years be x

Peter is 6 times as old as his son:
35 + x = 6(10 + x)
35 + x = 60 + 6x
5x =- 25
x = -5

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Answer: 5 years ago, Peter was 6 times as old as his son.
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