SOLUTION: John is four times as old as peter this year.10 years later,john 's age will be double peter's. Find peter's age in three years time.

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Question 1001148: John is four times as old as peter this year.10 years later,john 's age will be double peter's. Find peter's age in three years time.
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
j and p ages
system%28j=4p%2Cj%2B10=2%28p%2B10%29%29

4p%2B10=2p%2B20
2p%2B10=20
2p=10
highlight%28p=5%29

Question asks to evaluate p%2B3.