Question

A man is thrice as old as his son 5 years ago the man was four times as old as his son find their present age

Answer 1

$<b>Heya !$

Here's your answer !!

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Let the son's present age be x

Man's present age = 3x

5 years ago,

Son's age = x - 5

Man's age = 3x - 5

A.T.Q.

=> 3x - 5 = 4 ( x - 5 )

=> 3x - 5 = 4x - 20

=> 4x - 3x = 20 - 5

=> x = 15

ANS )

Son's present age is 15 years.

Man's present age = 3 × 15 = 45 years.

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Thanks !!

Answer 2

$\mathcal{\huge{ANSWER }}$

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$<b><i>GIVEN$

Let the son's age = a

Then,

Man's age = 3a

5 years ago -

The son's age = a - 5

Then,

Man's age = 3a - 5

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SOLUTION

A.T.Q.

3a - 5 = 4( a - 5 )

=> 3a - 5 = 4a - 20

=> 4a - 3a = -5 + 20

=> a = 12

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ANS

Son's present age = 15 years

Man's present age = 3 × 15

=> 45 years

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Thanks !!