Question

Father is 25 years elder to his son 4 years hence the father's age will be one less than thrice of the sun is what is

Answer 1

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f = s + 40

f + 5 = 3 (s + 5)

(s + 40) + 5 = 3 (s + 5)

s + 45 = 3s + 15

-2s = -30

s = 15

f = s + 40

f = 15 + 40

f = 55

The father is 55 years old and his son is 15 years old

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Answer 2

Let son's age be X years

Father's age = 25+X years

After 4 years,

Son's age will be X+4 years

Father's age will be 25+X+4 = 29+X years

Given,

29+X = 3(X+4)-1

29+X+1 = 3X + 12

30 + X = 3X + 12

3X-X = 30-12

2X = 18

X = 18/2

X = 9 years

Thus, son's age is 9 years and father's age is 34 years.

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