Question

A rectangular tank is 225m × 165 m at the base... with what speed should water flow into it through an aperture 60cm ×45cm so that level of the water raised by 20cm in 2.5 hrs

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

The tank is in the shape of a cuboid. 

Volume of a cuboid =l×b×h.

Since, after 5 hours, the height of the water is 20cm,

Volume of water in the tank in 5 hours =225×162×10020m3=7290m3

Let x  m/ hour be the speed of the water flowing thought the aperture.

Then, Volume of water flown through the aperture in 5 hours =(10060×10045×5×x)m3

Now,  2027x=7290x=277290×20=5400 m/hr