MCQ
If $\text{x}=15$ and $\text{y}=\frac{1}{30},$ then $x$ and $y$ are:
  • Inversely proportional.
  • B
    Directly proportional.
  • C
    Neither directly nor inversely proportional.
  • D
    Cannot be determined.

Answer

Correct option: A.
Inversely proportional.

$\text{x}=15,\text{y}=\frac{1}{30}$
$\frac{1}{30}=\frac{1}{2\times15}$
$\text{y}=\frac{1}{2\text{x}}$
Hence, $\text{y}\propto\frac{1}{\text{x}},$
Where $\frac{1}{2}$ is the proportionality constant.

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