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Direct and Inverse Proportions — MATHS STD 8 — Question

Gujarat BoardEnglish MediumSTD 8MATHSDirect and Inverse Proportions1 Mark
MCQ
If $x = 20$, and $y = 40$, then $x$ and $y$ are:
  • ✓
    Directly proportional.
  • B
    Inversely proportional.
  • C
    Neither directly nor inversely proportional.
  • D
    Cannot be determined.
✓

Answer

Correct option: A.
Directly proportional.

Clearly, $40 = 2 \times 20$
$y = 2x$
$\text{y} ∝ \text{x},$ where $2$ is the proportionality constant.

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