Question

A cubical water tank is filled by tap water at the rate of 1.4 litres per sec. Find the length of an edge of the tank in cm if the tank is completely filled in 28 mins.
Plz help me 2 understand the concept

Answer 1

Total time taken is 28×60=1600 seconds
If it takes 1 second to eject out 1.4L
It will eject out 1600×1.4L = 2240L
We know 1m³=1000L
Therefore 2240L = 2.24m³
This gives volume of cubical tank
Therefore edge is ∛2.24 ≈ 1.308m

Answer 2

Answer:

Step-by-step explanation:

Total time taken is 28×60=1600 seconds

If it takes 1 second to eject out 1.4L

It will eject out 1600×1.4L = 2240L

We know 1m³=1000L

Therefore 2240L = 2.24m³

This gives volume of cubical tank

Therefore edge is ∛2.24 ≈ 1.308m

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