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Home Aptitude Volume and Surface Area Comments

  • Question
  • A metallic sheet is of rectangular shape with dimensions 48 m x 36 m. From each of its corners, a square is cut off so as to make an open box. If the length of the square is 8 m, the volume of the box (in m3) is:


  • Options
  • A. 4830
  • B. 5120
  • C. 6420
  • D. 8960

  • Correct Answer
  • 5120 

    Explanation
    Clearly, l = (48 - 16)m = 32 m,

    b = (36 -16)m = 20 m,

    h = 8 m.

    ∴ Volume of the box = (32 x 20 x 8) m3 = 5120 m3.


  • Volume and Surface Area problems


    Search Results


    • 1. In a shower, 5 cm of rain falls. The volume of water that falls on 1.5 hectares of ground is:

    • Options
    • A. 75 cu. m
    • B. 750 cu. m
    • C. 7500 cu. m
    • D. 75000 cu. m
    • Discuss
    • 2. A hollow iron pipe is 21 cm long and its external diameter is 8 cm. If the thickness of the pipe is 1 cm and iron weighs 8 g/cm3, then the weight of the pipe is:

    • Options
    • A. 3.6 kg
    • B. 3.696 kg
    • C. 36 kg
    • D. 36.9 kg
    • Discuss
    • 3. A large cube is formed from the material obtained by melting three smaller cubes of 3, 4 and 5 cm side. What is the ratio of the total surface areas of the smaller cubes and the large cube?

    • Options
    • A. 2 : 1
    • B. 3 : 2
    • C. 25 : 18
    • D. 27 : 20
    • Discuss
    • 4. A cistern of capacity 8000 litres measures externally 3.3 m by 2.6 m by 1.1 m and its walls are 5 cm thick. The thickness of the bottom is:

    • Options
    • A. 90 cm
    • B. 1 dm
    • C. 1 m
    • D. 1.1 cm
    • Discuss
    • 5. A hall is 15 m long and 12 m broad. If the sum of the areas of the floor and the ceiling is equal to the sum of the areas of four walls, the volume of the hall is:

    • Options
    • A. 720
    • B. 900
    • C. 1200
    • D. 1800
    • Discuss
    • 6. The slant height of a right circular cone is 10 m and its height is 8 m. Find the area of its curved surface.

    • Options
    • A. 30Π m2
    • B. 40Π m2
    • C. 60Π m2
    • D. 80Π m2
    • Discuss
    • 7. 8988 ÷ 8 ÷ 4 =?

    • Options
    • A. 4494
    • B. 561.75
    • C. 2247
    • D. 280.875
    • E. None of these
    • Discuss
    • 8. 5358 x 51 =?

    • Options
    • A. 273258
    • B. 273268
    • C. 273348
    • D. 273358
    • Discuss
    • 9. The difference of two numbers is 1365. On dividing the larger number by the smaller, we get 6 as quotient and the 15 as remainder. What is the smaller number?

    • Options
    • A. 240
    • B. 270
    • C. 295
    • D. 360
    • Discuss
    • 10. 1397 x 1397 =?

    • Options
    • A. 1951609
    • B. 1981709
    • C. 18362619
    • D. 2031719
    • E. None of these
    • Discuss


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