Volume and Surface Area Questions Practice Question and Answer

Q:

The ratio of the volume of right circular cylinder and a right circular cone of the same base and height will be:

884 0

  • 1
    1:3
    Correct
    Wrong
  • 2
    2:3
    Correct
    Wrong
  • 3
    3:2
    Correct
    Wrong
  • 4
    3:1
    Correct
    Wrong
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Answer : 4. "3:1"

Q:

Find the area of the shaded region if the radius of each of the circle is 1 cm.

1770 1

  • 1
    $$ 2-{π\over3}$$
    Correct
    Wrong
  • 2
    $$ \sqrt{3}-{π\over2}$$
    Correct
    Wrong
  • 3
    $$ \sqrt{3}-{π}$$
    Correct
    Wrong
  • 4
    $$ \sqrt{3}-{π\over4}$$
    Correct
    Wrong
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Answer : 1. "$$ 2-{π\over3}$$"

Q:

A wall is the form of a trapezium with height 8 m and parallel sides being 5 m and 10 m. What is the cost of painting the wall, if the rate of painting is Rs. 50 per square meter  ?

1038 0

  • 1
    Rs.5000
    Correct
    Wrong
  • 2
    Rs.3000
    Correct
    Wrong
  • 3
    Rs.6000
    Correct
    Wrong
  • 4
    Rs .4000
    Correct
    Wrong
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Answer : 2. "Rs.3000"

Q:

In the given figure find out the area of circle?

1126 0

  • 1
    48π sq cm
    Correct
    Wrong
  • 2
    50π sq cm
    Correct
    Wrong
  • 3
    100π sq cm
    Correct
    Wrong
  • 4
    200π sq cm
    Correct
    Wrong
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Answer : 3. "100π sq cm"

Q:

What is the area of an equilateral triangle having altitude equal to $$5\sqrt{3}$$cm.

788 0

  • 1
    $$25\sqrt{3}$$
    Correct
    Wrong
  • 2
    $$45\sqrt{3}$$
    Correct
    Wrong
  • 3
    45
    Correct
    Wrong
  • 4
    40
    Correct
    Wrong
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Answer : 1. "$$25\sqrt{3}$$"

Q:

One side of the rectangular ground is 8m and its diagonal is 17m. Find the area of the ground?

903 0

  • 1
    150 m²
    Correct
    Wrong
  • 2
    140 m²
    Correct
    Wrong
  • 3
    130 m²
    Correct
    Wrong
  • 4
    120 m²
    Correct
    Wrong
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Answer : 4. "120 m²"

Q:

A rectangular ground 16m long and 10m breadth. It has a gravel path 2.5m wide all around it on the outside. What is the area of the path?

1029 0

  • 1
    159 m²
    Correct
    Wrong
  • 2
    155 m²
    Correct
    Wrong
  • 3
    187 m²
    Correct
    Wrong
  • 4
    183 m²
    Correct
    Wrong
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Answer : 2. "155 m²"

Q:

A solid metallic cylinder of base radius 5 cm and height 7 cm is melted to form cones, each of height 1 cm and base radius 1 mm. Find the number of cones?

935 0

  • 1
    53500
    Correct
    Wrong
  • 2
    49500
    Correct
    Wrong
  • 3
    51500
    Correct
    Wrong
  • 4
    52500
    Correct
    Wrong
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Answer : 4. "52500"

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