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  • Question

  • Two regular polygons are such that the ratio between their number of sides is 1:2 and the ratio of measures of their interior angles is 3:4. Then the number of sides of each polygon are


  • Options
  • A. 10, 20
  • B. 4, 8
  • C. 3, 6
  • D. 5, 10

  • Correct Answer
  • 5, 10 

    • Tags: Bank Exams

    Volume and Surface Area problems

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    • 1. The length and breadth of a rectangular piece of a land are in a ratio 5:3. The owner spent Rs. 6000 for surrounding it from all sides at Rs.7.50 per metre. The difference between its length and breadth is

    • Options
    • A. 50 metres
    • B. 100 metres
    • C. 150 metres
    • D. 250 metres
      • Discuss
    • 2. The external and the internal radii of a hollow right circular cylinder of height 15 cm are 6.75 cm and 5.25 cm respectively. If it is melted to form a solid cylinder of height half of the orignal cylinder, then the radius of the solid cylinder is

    • Options
    • A. 6 cm
    • B. 7.25 cm
    • C. 6.5 cm
    • D. 7 cm
      • Discuss
    • 3. The base of a right prism is a trapezium whose the length of parallel sides are 25 cm and 11 cm and the perpendicular distance between the parallell sides in 16 cm. If the height of the prism is 10 cm, then the volume of the prism is

    • Options
    • A. 1440 cu.cm
    • B. 1540 cu.cm
    • C. 2880 cu.cm
    • D. 960 cu.cm
      • Discuss
    • 4. A solid sphere and a solid hemisphere have the same total surface area. The ratio of their volumes is (Take, ?=22/7)

    • Options
    • A. 3?3 : 4
    • B. 4 : 3?3
    • C. 3 : 4?3
    • D. 1 : 12?3
      • Discuss
    • 5. If the sum of radius and height of a solid cylinder is 20 cm and its total surface area is 880 cm then its volume is

    • Options
    • A. 1760 cm3
    • B. 8800 cm3
    • C. 2002 cm3
    • D. 4804 cm3
      • Discuss
    • 6. A right circular cylinder is partially filled with water. Two iron spherical balls are completely immersed in the water so that the height of the water in the cylinder rises by 4 cm. If the radius of one ball is half of the other and the diameter of the cylinder is 18 cm, then the radii of the spherical balls are

    • Options
    • A. 6 cm and 12 cm
    • B. 4 cm and 8 cm
    • C. 3 cm and 6 cm
    • D. 2 cm and 4 cm
      • Discuss
    • 7. The whole surface area of a pyramid whose base is a regular polygon is 340 cm2 and area of its base is 100 cm2 . Area of each lateral face is 30 cm2. Then the number of lateral faces is

    • Options
    • A. 8
    • B. 9
    • C. 7
    • D. 10
      • Discuss
    • 8. Two chords AB and CD of a circle with centre O intersect at P. If ?APC = 40°. Then the value of ?AOC + ?BOD is

    • Options
    • A. 50°
    • B. 60°
    • C. 80°
    • D. 120°
      • Discuss
    • 9. The radii of two cylinders are in the ratio 2:3 and their heights are in the ratio 5:3. The ratio of their volumes is

    • Options
    • A. 27:20
    • B. 20:27
    • C. 4:9
    • D. 9:4
      • Discuss
    • 10. Three cubes of iron whose edges are 6cm, 8cm and 10cm respectively are melted and formed into a single cube. The edge of the new cube formed is

    • Options
    • A. 12 cm
    • B. 14 cm
    • C. 16 cm
    • D. 18 cm
      • Discuss

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