Volume and Surface Area Practice Question and Answer

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  ?

1179 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:

Area of a circle inscribed in a square is 308 cm2.The length of the diagonal of the square is

1174 0

  • 1
    16 cm
    Correct
    Wrong
  • 2
    28 cm
    Correct
    Wrong
  • 3
    24 cm
    Correct
    Wrong
  • 4
    22 cm
    Correct
    Wrong
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Answer : 2. "28 cm"

Q:

A field roller, in the shape of a cylinder, has a diameter of 1 meter and length of meter. If the speed at which the roller rolls is 14 revolutions per minute, then the maximum area ( in m2) that it can roll in 1 hour is:

1173 0

  • 1
    3600
    Correct
    Wrong
  • 2
    3560
    Correct
    Wrong
  • 3
    3960
    Correct
    Wrong
  • 4
    3300
    Correct
    Wrong
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Answer : 4. "3300"

Q:

Two 6 cm diameter balls dipped in a 6 cm radius cylindrical vessel of water. Find the height of water in the vessel?

1171 0

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

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?

1170 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:

If the length of the diagonal of a square is cm, then what will be the area of the square?

1168 0

  • 1
    200 cm2
    Correct
    Wrong
  • 2
    100 cm2
    Correct
    Wrong
  • 3
    Correct
    Wrong
  • 4
    50 cm2
    Correct
    Wrong
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Answer : 2. "100 cm2"

Q:

The ratio of the areas of two circles is 16: 25. What will be the ratio of their circumferences?

1161 0

  • 1
    4 : 5
    Correct
    Wrong
  • 2
    3 : 2
    Correct
    Wrong
  • 3
    4 : 9
    Correct
    Wrong
  • 4
    9 : 4
    Correct
    Wrong
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Answer : 1. "4 : 5 "

Q:

A right circular cylinder is formed by rolling a rectangular sheet of metal of length 44 cm and breath 20 cm along its length. The volume of cylinder is_

1161 0

  • 1
    3080
    Correct
    Wrong
  • 2
    4090
    Correct
    Wrong
  • 3
    4095
    Correct
    Wrong
  • 4
    5000
    Correct
    Wrong
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Answer : 1. "3080 "

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