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A village, having a population of 4000, ...

A village, having a population of 4000, requires 150 litres of water per head per day. It has a tank measuring `20"\ "m"\ "xx"\ "15"\ "m"\ "xx"\ "6"\ "m` . For how many days will the water of this tank last?

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The correct Answer is:
3 days
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