The number of workers increased the days to complete the work decreased."is example of

Inverse ratio

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Direct ratio

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Both of A and B

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none of above

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Solution

The correct option is B Inverse ratio
Inverse proportion is a relation between two quantities such that one increases in proportion as the other decreases i.e. If $x$ increases as $y$ decreases, $x α \frac{1}{y}$
In the given example, if the no. of workers are increased then the time required to do the job will decrease, likewise if no. of workers decrease, then time to do the same job will increase i.e. no. of workers and time to do job are inversely proportional to each other.
hence the answer is inverse proportion
So, the answer is option A.

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