Example of Inverse proportion
Twenty men can paint a building in 15 days. How many days will it take 30 men to paint the same building? pls explain the question.
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Inverse proportion occurs when one value increases and the other decreases. For example, more workers on a job would reduce the time to complete the task. They are inversely proportional.
Correct option is
B
2 days
Using Work=men×days we can see that
Work=3×20=60
Since the work is same
60=30×days
days=2
Therefore, Answer is (B)
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