Question

Age of John's father is three times the age of John.Five years ago, age of father was four times John's age at that time. Find their present ages.​​

Answer 1

Answer:

let age of John be x

hence father's age=3x

now,5 yrs ago

hence,John's age=x-5

father's age=3x-5

3x-5=4(x-5)

3x-5=4x-20

4x-3x=-5+20

x=15

hence,present age of John=x=15yrs

present age of father=3x=3×15=45 yrs

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