Question

water is pouring into a cuboidal reservoir at the rate of 60 litres per minute.if the volume of the reservoir is 108 cube.metre,find the number of hours it will take to fill the reservoir.​

Answer 1

Answer:

30 hours

Step-by-step explanation:

Rate of flow of water = 60 litres/minute

Volume of the tank = 108 m3

1 m3 = 1000 litres

108 m3= 108000 litres

Time taken to fill the complete tank = 108000/60 = 1800 minutes = 1800/60 hours = 30 hours

The tank will be filled completely in 30 hours.

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Answer 2

Answer: 30 hours.

Step-by-step explanation-

Given-

• Volume of reservoir = 108³

= ( 108 × 1000) litres [ Since 1m³ = 1000 L ]

• Rate of flow of water = 60 L per minute.

To find-

• Time taken to fill the reservoir.

How to solve?

• In the question we have given total volume and rate of flow of water per minute. So, simply we'll divide the rate of flow of water per minute by volume in litres to find total time.

Solution-

Time taken to fill the reservoir-

$\sf {⟶ ( \frac {volume \: of \: reservoir \: in \: litres}{rate \: of \: flow \: in \: litres \: per \: min} )}$

$\sf {⟶( \frac{108 \times 1000}{60})min }$

$\sf{⟶( \frac{108 \times 1000}{60 \times 60})hours}$

$\sf {⟶30 \: hours}$

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

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