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Home Aptitude Volume and Surface Area Comments

  • Question
  • Find the surface area of a cuboid 10 m long, 5 m broad and 3 m high?


  • Options
  • A. 105 sq m
  • B. 104 sq m
  • C. 170 sq m
  • D. 190 sq m

  • Correct Answer
  • 190 sq m 

    Explanation

    Given that, l = 10 m , b = 5 m, h = 3 m
    lb = 10 x 5 = 50, bh = 5 x 3 = 15,
    lh = 10 x 3 = 30
    ? Surface area of a cuboid
    = 2(lb + bh + lh)
    = 2(50 + 15 + 30)
    = 2 x 95 = 190 sq m


  • Volume and Surface Area problems


    Search Results


    • 1. 
      If the volume of a cube is 729 cu cm, what is the length of its diagonal?

    • Options
    • A. 9?2 cm
    • B. 9?3 cm
    • C. 18 cm
    • D. 18?3
    • Discuss
    • 2. 
      If the total surface area of a cube is 6 sq units, then what is the volume of the cube?

    • Options
    • A. 1 cu unit
    • B. 2 cu units
    • C. 4 cu units
    • D. 6 cu units
    • Discuss
    • 3. 
      The diagonal of a cube is 2? 3 cm. Find the surface area of the cube.

    • Options
    • A. 15 sq cm
    • B. 18 sq cm
    • C. 25 sq cm
    • D. 24 sq cm
    • Discuss
    • 4. 
      A solid consists of a circular cylinder with an exact fitting right circular cone placed on the top. The height of the cone is h. If the total volume of the cone, then the height of the cylinder is?

    • Options
    • A. 2h
    • B. 4h
    • C. 2h/3
    • D. 3h/2 ?r2 x 5
    • Discuss
    • 5. 
      The cost of painting the four walls of a room is Rs. 350. The cost of painting a room three times in length, breadth and height respectively will be?

    • Options
    • A. Rs. 1050
    • B. Rs. 1400
    • C. Rs. 3150
    • D. Rs. 4200
    • Discuss
    • 6. 
      The surface area of a cube is 726 sq cm. Find the volume of the cube.?

    • Options
    • A. 1331 cm3
    • B. 1232 cm3
    • C. 1626 cm3
    • D. 1836 cm3
    • Discuss
    • 7. 
      The volume of a cuboid is 1989 cm 3 , while its length and breadth are 17 cm and 13 cm, respectively, Find the height of the cuboid.?

    • Options
    • A. 9 cm
    • B. 4 cm
    • C. 14 cm
    • D. 7 cm
    • Discuss
    • 8. 
      Three cubes of sides 1 cm, 6 cm and 8 cm are melted to form a new cube. Find half of the surface area of the new cube.?

    • Options
    • A. 243 sq cm
    • B. 463 sq cm
    • C. 486 sq cm
    • D. 293 sq cm
    • Discuss
    • 9. 
      The maximum length of a pencil that can be kept in a rectangular box of dimensions 8 cm x 6 cm x 2 cm, is?

    • Options
    • A. 2?13 cm
    • B. 2?14 cm
    • C. 2?26 cm
    • D. 10?2 cm
    • Discuss
    • 10. 
      Internal length, breadth and height of a rectangular box are 10 cm, 8 cm and 6 cm, respectively. How many boxes are needed which can be packed in a cube whose volume is 6240 cu. cm.?

    • Options
    • A. 12
    • B. 13
    • C. 15
    • D. 17
    • Discuss


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