MCQ
If $x = 20$ and $y = 40$, then $x$ and $y$ are:
- ✓Directly proportional
- BInversely proportional
- CNeither directly nor inversely proportional
- DCannot be determined
✓
Answer
Correct option: A.
Directly proportional
$x=20$ and $y=40$
Clearly, $40=2 \times 20$
$y=2 x$
$\mathrm{y} \propto \mathrm{x},$ where $2$ is the proportionality constant.
Clearly, $40=2 \times 20$
$y=2 x$
$\mathrm{y} \propto \mathrm{x},$ where $2$ is the proportionality constant.
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