six years hence a man's age will be three times the age of his son and three years ago he was nine times as old as his son. find the present age
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Answered by
22
Hey!!!!!
let the age of the man be x and his son be y (in years)
Then ATQ,
(x + 6) = 3(y + 6)
=> x + 6 = 3y = 18
=> x - 3y = 12 ------- (1)
Also
(x - 3) = 9(y - 3)
=> x - 3 = 9y - 27
=> x - 9y = -24 -------(2)
Subtract (2) from (1)
=> x - 3y - (x - 9y) = 12 -(-24)
=> 6y = 36
=> y = 6 years.
Thus using y in (1)
=> x - 3(6) = 12
=> x = 30 years
Thus Father's age is 30 years and son's age is 6 years.
Hope this helps
let the age of the man be x and his son be y (in years)
Then ATQ,
(x + 6) = 3(y + 6)
=> x + 6 = 3y = 18
=> x - 3y = 12 ------- (1)
Also
(x - 3) = 9(y - 3)
=> x - 3 = 9y - 27
=> x - 9y = -24 -------(2)
Subtract (2) from (1)
=> x - 3y - (x - 9y) = 12 -(-24)
=> 6y = 36
=> y = 6 years.
Thus using y in (1)
=> x - 3(6) = 12
=> x = 30 years
Thus Father's age is 30 years and son's age is 6 years.
Hope this helps
gungun78:
thanks
Answered by
2
Answer: hope this solution help you
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