A number decreased by 28% becomes 540. Find the number.

650

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750

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700

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800

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Solution

The correct option is B
750

Let the number be $x$

$x - \frac{28}{100} x = 540$

$\frac{72 x}{100} = 540$

$x = \frac{540 \times 100}{72}$

$\Rightarrow$ $x$ = $750$

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