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What is meant by direct and indirect proportions?
Direct proportion :
- In a direct proportion, as one quantity increases, the other also increases.
- In a direct proportion, the ratio between matching quantities stays the same if they are divided. (They form equivalent fractions).
Indirect proportion :
- In an indirect (or inverse) proportion, as one quantity increases, the other decreases.
- In an inverse proportion, the product of the matching quantities stays the same.
We have to know the relation between the given quantities to find whether they are directly proportional or indirectly proportional.
For example,
$Speed = \frac{Distance}{Time}$
Speed and distance are directly proportional and speed and time are indirectly proportional.
Updated on: 10-Oct-2022
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