Thursday, June 6, 2019

Problem 110: Fathers and Sons

father and son cartoon ile ilgili görsel sonucu


My father is 4 times as old as I am.

5 years from now, he will be 3 times as old as my age.

15 years later, he will be 2 times as old as I will be.

How many years ago, was his age 6 times as old as I was?

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