Twelve years hence a person will be four times as he was twelve years ago, then his present age is

20

years

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25

years

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28

years

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30

years

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Solution

The correct option is A $20$ years
Let his present age be $x$
According to problem
$\Rightarrow x + 12 = 4 (x - 12)$
$\Rightarrow - 3 x = - 48 - 12$
$\Rightarrow 3 x = 60$
$\Rightarrow x = 20$ years.

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Twelve years hence a person will be four times as he was twelve years ago, then his present age is

The correct option is A 20 yearsLet his present age be xAccording to problem⇒x+12=4(x−12)⇒−3x=−48−12⇒3x=60⇒x=20 years.

The correct option is A $20$ years
Let his present age be $x$
According to problem
$\Rightarrow x + 12 = 4 (x - 12)$
$\Rightarrow - 3 x = - 48 - 12$
$\Rightarrow 3 x = 60$
$\Rightarrow x = 20$ years.