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Rational Numbers — MATHS STD 8 — Question

Gujarat BoardEnglish MediumSTD 8MATHSRational Numbers1 Mark
MCQ
To get the product $\frac{-4}{5}$, we should multiply $\frac{10}{11}$ by
  • A
    $\frac{14}{5}$
  • B
    $\frac{-4}{25}$
  • ✓
    $\frac{-22}{25}$
  • D
    $\frac{-9}{5}$
✓

Answer

Correct option: C.
$\frac{-22}{25}$
(C) $\frac{-22}{25}$
Hint Let the required number be x.
According to the question,
$x \times \frac{10}{11}=\frac{-4}{5} \Rightarrow \frac{10}{11} \times x=\frac{-4}{5}$
$\Rightarrow \quad x=\frac{-4}{5} \div \frac{10}{11} \Rightarrow x=\frac{-4}{5} \times \frac{11}{10}=\frac{-44}{50}$
$\therefore \quad x=\frac{-22}{25}$

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