Porygonx100 Porygonx100

02-03-2016
Mathematics

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Bob is three times as old as Peter. If the sum of their ages is 56, how old is Bob?

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hworonie hworonie

02-03-2016

let x=peter's age
let 3x=bob's age

3x+x=56
4x=56
x=14

3(14)=42
Bob is 42 years old.

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