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A right circular cylinder having the radius of its base as 2 centimeters is filled with water upto a height of 2 centimeters. This water is then poured into an empty rectangular container the dimensions of whose base are 2π by 3 centimeters. If the volume of water in the rectangular container is increased by 50 percent by adding extra water, what is the final height, in centimeters, of the water level in centimeters in the rectangular container?
  • a)
    0.5
  • b)
    1
  • c)
    1.5
  • d)
    2
  • e)
    2.5
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
A right circular cylinder having the radius of its base as 2 centimete...
Given
  • Water is filled in a right circular cylinder
    • Radius = 2 centimeters
    • Height of water in the cylinder = 2 centimeters
  • Rectangular container with base dimensions as 2π by 3 centimeters
  • Volume of the water in the container is increased by 50%
To Find:
  • The height of the water in the container.
Approach and Working:
  • The total volume of water in the rectangular container = Area of the base of the rectangular container * Height of the water in the rectangular container.
  • As we know the dimensions of the base of the rectangular container we can calculate the area of its base.
  • So, we need to find the total volume of water in the rectangular container to find the height of the water in the rectangular container
  • Total Volume of water in the rectangular container = Initial volume of water + 50% of the initial volume of water.
  • Now, we know that Initial volume of water = volume of water in the cylinder
  • As we know the radius of the cylinder and the height of the water in the cylinder, we can calculate the volume of water in the cylinder.
  • Area of the base of the rectangular container = 2π * 3 = 6π
  • Volume of the rectangular container = Area of base * Height = 6π * H………(i)
  • Total volume of water in the rectangular container = Initial volume of water + 50% of initial volume of water
  • Initial volume of water = volume of water in the cylinder = π * 22 * 2
  • Total volume of water in the rectangular container = 8π * 1.5 = 12π…………. (ii)
  • Equating (i) and (ii), we get –
    • 6π * H = 12π
    • H = 2 centimeters
  • Thus, the correct answer is Option D.
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A right circular cylinder having the radius of its base as 2 centimeters is filled with water upto a height of 2 centimeters. This water is then poured into an empty rectangular container the dimensions of whose base are 2π by 3 centimeters. If the volume of water in the rectangular container is increased by 50 percent by adding extra water, what is the final height, in centimeters, of the water level in centimeters in the rectangular container?a)0.5b)1c)1.5d)2e)2.5Correct answer is option 'D'. Can you explain this answer?
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