MCQ
If $x = 15$, and $\text{y} = \frac{1}{30},$ then $x$ and $y$ are:
- ✓Directly proportional.
- BInversely proportional.
- CNeither directly nor inversely proportional.
- DCannot be determined.
✓
Answer
Correct option: A.
Directly proportional.
$\text{x} = 15,\ \text{y} = \frac{1}{30}$
$=\frac{1}{30}=\frac{1}{(2 \times 15)}$
$=\text{y}=\frac{1}{2\text{x}}$
Hence, $\text{y} ∝\frac{1}{\text{x}},$
where $\frac{1}{2}$ is the proportionality constant.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
What is $12ab^2 \div c^3 8bc^2$
→Read the graph and answer the related questions:
Find the rise in the number of labourers from $2001$ to $2004.$
→Find the rise in the number of labourers from $2001$ to $2004.$
$x$ and $y$ vary inversely. When $x = 15,$ then $y = 6.$ What will be the value of $y$ when $x = 9\ ?$
→A number of the form $\frac{\text{p}}{\text{q}}$ is said to be a rational number if:
→What will be the length of the side of a cube if its total surface area is $2166cm^2?$
→ A cuboid has dimensions $5\ cm , 2\ cm, 5\ cm$ .How many such cuboid will be needed to form a cube?
→$149600000000$ is equal to:
→Sam is stuck at an equation $4a + a - 2a = 72$, help him find the value of a.
→Tick $(\checkmark)$ the correct answer: If $\text{z}=\frac{4}{5}(\text{z}+10),$ then $\text{z} = ?$
→The value of $x^2 - 2yx + y^2$ when $x = 1, y = 2$ is:
→