Question

a cylindrical water tank of diameter 4m and height 3.5 m is filled completely with water. a tap attached to the tank empties the tank at the rate of 2 litres b
per minute. in how many minutes will the tank be empty
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Answer 1

Answer:

Step-by-step explanation:

First we find the volume of tank. Since the tank is the form of cylindrical form .

Diameter = 4m

So radius = 2m

Height = 3.5m

Volume of tank = πr²h

= 22/7x (2)²x3.5

= 22x4x0.5

= 44m³= 44000litre

Now since the tap empeties the tank at the rate of 2 litre per minute

the tap empties the tank at the rate of 1 litre =1/2 minute

So, the tap 44000 litre water empeties to tank = 44000x½

= 22000minute