john is 35 years old,and his son is 5. how many years will john be exactly 3 times as old as his son?

asked May 23, 2018 123k views

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3 votes

10 years the son would be 15

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(35+t)/(5+t)=3 --> 35+t = 15+3t --> 20=2t --> t=10 years

Dad: 45, son: 15 (works!)

Hauwa answered May 29, 2018

by Hauwa

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