Question

# Water is pouring into a cuboidal reservoir at the rate of 60 litres per minute. If the volume of reservoir is 108 m3 find the number of hours it will take to fill the reservoir.

A
30 hours
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B
60 hours
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C
15 hours
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D
20 hours
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Solution

## The correct option is A 30 hoursGiven : Volume of Cuboidal reservoir = 108 m3 Rate of pouring water into cuboidal reservoir = 60 litres/min =601000m3/minute[∵1liter=11000m3] ∵60×601000m3 water filled in reservoir will take = 100060×60 hours ∴1m3 water filled in reservoir will take=100060×60 hours ∴108 m3 water filled in reservoir will take=108×100060×60 hours=30 hours It will take 30 hours to fill the reservoir.

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