a father is 30 yrs older than his son.In 12 years,the man will be three times as older as his son.find their present age.
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let present age of son is =x years.
so present age of father is =x+30.
in 12 yr. son age will be x+12 yr
father age will be x+30+12= x+ 42 yr.
accroding to questions :
3 × (x +12) = x +42
or, 3x -x = 42-36
or, 2x = 12
or x = 6
so present age of son is 6 years. and father age is 36 years.
so present age of father is =x+30.
in 12 yr. son age will be x+12 yr
father age will be x+30+12= x+ 42 yr.
accroding to questions :
3 × (x +12) = x +42
or, 3x -x = 42-36
or, 2x = 12
or x = 6
so present age of son is 6 years. and father age is 36 years.
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