Question

(1) water flows in a tank 60m×40m at the base through the pipe whose cross section is 2dm×1.5dm at the speed of 8km/h . In what time the water will be 5m deep

please koi eska answer de do​

Answer 1

Answer:

Volume of water discharged through the pipe = Volume increase of the tank

First, consider the pipe.

Volume discharge through pipe = length×breadth×speed×time

Let the time taken to fill the tank to 3 m depth be t.

Volume discharge through pipe, V=2×10

−1

×1.5×10

−1

×15×10

3

×t

⇒ V=450t cu. m

Now consider the tank

Depth of the tank = 3 m

Volume of the tank V=150×100×3 cu. m

⇒ V=450×100

Therefore, 450t=450×100

⇒ t=100 hours

Therefore, option C is correct.

Answer 2

Answer:

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