Question

social welfare association decide to supply drinking water for the flood affected people the drinking water is filled in the water tank which is in the shape of a cylinder with hemispherical shown in the figure the hole in the tank is 4.2 metre and the diameter of the base of the cylinder and two hemispheres are each 1.2 metre if there distribute drinking water to 60 people in a container reach in shape of a cylinder of radius 21 cm and height 15 cm find the quantity of water left the tanker of a distribution
in litre

Answer 1

Answer:

Answer is 3.72 litres

first you find the total volume of both cylinder and 2 hemisphere and then that answer is 430,000 $cm^{2}$

and then you find the volume of the container which the answer is 69300$cm^{2}$

and then start to divide 430000 centimetre square by 69300 we have to distribute for 60 people so we have to multiple to it with this and we will get the answer 3.72.

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Answer 2

quantity of the water left in the tank = 3051.9 liters

Step-by-step explanation:

total height of the tank = 4.2 m

diameter = 1.2 m

volume of tank = volume of cylinder + volume of hemisphere

$\pi r ^2 h + 2\times \frac{2}{3}\pi r ^3 \\\\\frac{22}{7}\times 0.6\times 0.6 \times 3 + \frac{4}{3}\times \frac{22}{7}\times (0.6)^3)\\\\3.3942 + 0.9051 \\\\4.2993 m^3$

radius of container (r1)  = 21 cm = 0.21 m

height of the container (h1) = 15 cm = 0.15 m

volume of 1 container

$\pi r_1^2h_1 \\\\\frac{22}{7}\times 0.21\times 0.21 \times 0.15 \\\\= 0.02079$

volume of 60 containers = 60× 0.02079 = 1.2474 m³

quantity left in the tank = volume of tank - volume of 60 containers

= 4.2993 - 1.2474

= 3.0519 m³

1 m³ = 1000 l

quantity of the water left in the tank = 3051.9 liters

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