Q31.Water is pouring into a cuboidal reservoir at the rate of 30 litres per minute. If the volume of the reservoir is 108 m³, find the number of hours it will take to fill the reservoir.(4 marks)
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Volume of the reservoir
=108m3
=108×1000 litres
=108000 litres
Since water is pourind into reservoir @ 60 litres per minute.
∴ Time taken to fill the reservoir
=60×60108000hours=30hours.
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