Question

social welfare association decides to supply drinking water for the flood affected people the drinking water is filled in a water tank which is in the shape of a cylinder with a hemisphere and as shown in the figure the whole length of the tank is 4.2 metre and diameter of the base of the cylinder and the two hemispheres are eat 1.2 metre if the distributor drinking water to 60 people in a container each is in the shape of a cylinder of radius 21 cm and height 15 cm find the quantity of water left in the tanker after distribution in litre

Answer 1

The volume of water left in liters will be = 14140 liters.

Step-by-step explanation:

Length of the cylindrical part of the water tank is (4.2 - 1.2 - 1.2) = 1.8 m

Now, the volume of water in the tank is = $\pi r^{2} l + \frac{4}{3}\pi r^{3}$

= $\pi [(1.2)^{2}\times 1.8 + \frac{4}{3} \times (1.2)^{3}]$

= 4.896π m³

Now, volume of each container of 60 people will be πr²h = $\pi (21^{2} \times 15) = 6615\pi$ cm³ = 0.006615π m³

So, the volume of water left in the tank = 4.896π - 0.006615π × 60 = 15.387 - 1.247 = 14.14 m³

Now, the volume of water left in liters will be (14.14 × 1000) = 14140 liters. (Answer)

Answer 2

Answer:

462cm square

Step-by-step explanation:

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