In eight years, peter will be three times old as he was eight years ago, how old is peter now?

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honotMornne · Accepted Answer

Writing p for Peter&#039;s current age in years, we are given:p+8=3(p−8)=3p−24Add 24 to both ends to get:p+32=3pSubtract p from both sides to get:32=2pDivide both sides by 2 to get:p=16

bergvolk0k · Accepted Answer

With more details:Since you&#039;re only dealing with Peter&#039;s age at various points in time, you will only need to write one equation.Let&#039;s say that Peter&#039;s age is x now. You know that eight years from now, Peter will be three times as old as he was eight years ago.If you take Peter&#039;s age eight years from now to be x+8, and his age eight years ago to be x−8, then you have      x    +    8    =    3    ⋅          (      x      -      8      )      Solve this equation for x to get Peter&#039;s current age      x    +    8    =    3    x    -    24        2    x    =    32    ⇒    x    =          32      2        =                  16            So, eight years ago Peter was 8. Eight years from now, which is equivalent to 16 years from when he had 8 years, he will be 24

In eight years, peter will be three times old as he was eight years ago, how old is peter now?

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