John`s age
Algebra
Level
1
John`s age is currently 3 times of his son . Five years ago , their total age was 50 years . How old is John now ?
The answer is 45.
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take Johns age as x and his sons age as y x=3y 5 years ago,(x-5)+(y-5)=50; 4y-10=50; 4y=60; y=15; x=3y=45 ;