Class VIII Mathematics Quiz: Direct and Inverse Proportions
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Preview questions
1. What is direct proportion?
One quantity increases, the other decreases · Both quantities increase or decrease together · Both quantities remain constant · One quantity does not affect the other
2. If x is directly proportional to y, which equation represents this relationship?
x = ky · xy = k · x/y = k · x + y = k
3. In an inverse proportion, if one quantity increases, what happens to the other?
It also increases · It decreases · It remains the same · It doubles
4. If a is inversely proportional to b, which equation represents this relationship?
a = kb · ab = k · a + b = k · a - b = k
5. Which of the following represents a direct proportion?
Speed and time taken · Distance and speed · Work done and time · All of the above
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