A man is thrice as old as his son. five years ago the man was four times as old as his son. find their present ages.
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Step-by-step explanation:
Let the present age of son = x years
Therefore,
Present age of father = 3x years
5 years ago:
Son's age = x - 5
Father's age = 3x - 5
According to the given information:
3x-5= 4(x - 5)
3x - 5 = 4x - 20
20 - 5 = 4x - 3x
15 = x
Therefore, 3x = 3 * 15 = 45
Thus,
Son's present age = 15 years
Father's present age = 45 years
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