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Question

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


A
20 years
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B
25 years
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C
28 years
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D
30 years
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Solution

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

Mathematics

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