Question

plz solve this question

Answer 1

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Answer 2

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Given: Diameter of cylindrical pipe = 7 cm


Now, As water running in a cylindrical pipe is collected in a container at the rate of 192.5 litres per minute

 

∴Volume of water flows in 1 min = 192.5 Litres

⇒Volume of water flows in 1 hour = 192.5 × 60 × 1000 cm 3 ......(i)

 

Let the distance covered by water in 1 hour = l

Volume of water that covers the diameter of 1 hour = πr 2 l .....(ii)

 

From (i) and (ii), we get,

⇒ πr 2 l = 192.5 × 60 × 1000

 

 

∴ The distance covered by water in 1 hr = 3 km.

Thus, Rate of flow of water = 3 km/hr