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5 pumps are required to fill a tank in 1...

5 pumps are required to fill a tank in `1 1/2`hours. How many pumps of the same type are used to fill the tank in half an hour.

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VGS PUBLICATION-BRILLIANT-DIRECT AND INVERSE PROPORTION-EXERCISE
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  16. If x is directly proportional to y then which of the following is corr...

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  17. If x is inversely proportional to y then Which of the following is tru...

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  18. If the cost of 65 packets of tea is 2600, then the cost of 75 packets ...

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