a cylindrical pipe has inner diameter 4cm and water flows through it at the rate of 20 meter per minute. How long would it take to fill a conical tank of radius 40cm and depth 72cm.
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hey mate!
Given : Diameter of base of conical vessel = 80 cm
⇒ radius of base of conical vessel 
height of the conical vessel = 72 cm
Thus volume of conical vessels 
= 38400 π cm3 ... (1)
Let the conical vessel in filled in x minus than length of water column = 200 x m
⇒ length of cylinder = 2000 x cm
and diameter of pipe = 4 cm

∴ Volume of water that flows in x minutes = π × (2 cm)2 × 2000 x cm
= 8000 π x cm3 ... (2)
equating (1) and (2) we get
38400 π = 8000 π x

= 4 minutes 48 seconds
Hence the conical vessel will be filled in 4 minutes 48 seconds
PLZ MARK BRAINLIEST!!^_^
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