$\frac{1.5}{0.2 + x} = 5$ , then x=

-3.7

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0.1

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0.3

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0.5

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2.8

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Solution

The correct option is D 0.1
given that

$\frac{1.5}{0.2 + x} = 5$

cross multiplying

$\Rightarrow 5 \times (0.2 + x) = 1.5$

$\Rightarrow 5 \times 0.2 + 5 x = 1.5$

$\Rightarrow 1 + 5 x = 1.5$

$\Rightarrow 5 x = 1.5 - 1 = 0.5$

$\Rightarrow 5 x = 0.5$

$\Rightarrow x = 0.1$

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