MCQ
$\frac{1.5}{0.2 \ + \text{ x} },= 5$ then $x =$
  • A
    $-3.7$
  • $0.1$
  • C
    $0.3$
  • D
    $0.5$

Answer

Correct option: B.
$0.1$

$\frac{1.5}{0.2 \ + \text{ x} } = 5$
cross multiplying$\Rightarrow 5 \times (0.2 + x) = 1.5$
$\Rightarrow 5 \times 0.2 + 5x = 1.5$
$\Rightarrow 1 \times 5x = 1.5$
$\Rightarrow 5x = 1.5 - 1 = 0.5$
$\Rightarrow 5x = 0.5$
$\Rightarrow x = 0.1$

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