The correct option is B 250 0.4×x/100×0.4=0.4 ⇒ x=0.4×100/0.4×0.4=4×10×100/4×4=250 . ...

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Converting Percentages to Fractions/Decimals

0.4× x% of ...

Question

$0.4 \times x %$ of $0.4 = 0.4$

450

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250

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\frac{0.1}{12}

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0.6

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Solution

The correct option is B $250$
$0.4 \times \frac{x}{100} \times 0.4 = 0.4$
$\Rightarrow x = \frac{0.4 \times 100}{0.4 \times 0.4} = \frac{4 \times 10 \times 100}{4 \times 4} = 250$ .

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