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A natural number, when increased by 12, ...

A natural number, when increased by 12, becomes equal to 160 times its reciprocal. Find the number.

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Given,
a natural number increased by `12` equals to `160` times its reciprocal.
Let the natural number be `x`
So, `x + 12 = 160(1/x)`
`x^2 + 12x = 160`
...
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