man 3 times as old as his son . after 15 years , he will be only twice as old as his son . find their present ages.
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Answer:
father's age: 45
son's age: 15
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Step-by-step explanation:
At present, Father is 3 times as old as Son (given)
Let Son's age = x. Then, Father's age = 3x.
15 years hence, Father will be 2 times as old as Son (given)
15 years hence, their ages be 3x+15 and x+15
∴3x+15=2(x+15)
∴3x+15=2x+30
∴3x-2x=30-15
∴x=15
∴ Father's present age=45 years and Son's present age=15 years
After 15 years: father's age 45+15 = 60
and son's age : 15 + 15 = 30
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