Question

Please give me the solution of questions number 7

Answer 1

Given :
Rate of flowing of water into the reservoir is 60 litres per minute,
and volume of the reservoir is 108 cm³.

RELATIONSHIP-----

1 m³ = 1 ml
1 litre = 1000 cm³
1 m³ = 1000000 cm³ = 1000 litres 

If, 
1 m³ = 1000 litres 
so, 
capacity of reservoir = 108 × 1000 = 108000 litres .



Water is being poured at rate of 60 litre per minute. 

= (60 × 60) = 3600 litre per hour 

Number of hours water will take to fill the reservoir 
=$\frac{108000}{3600 }$ ​ = 30 hours

Hence, 
it will take 30 hours to fill the reservoir.

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