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  • Question
  • Length and breadth of a rectangle are 8 cm and 6 cm respectively. The rectangle is cut on its four vertices such that the resulting figure is a regular octagon. What is the side (in cm) of the octagon?


  • Options
  • A. 3(?11) ? 7
  • B. 5(?13) ? 8
  • C. 4(?7) ? 11
  • D. 6(?11) ? 9

  • Correct Answer
  • 3(?11) ? 7 

  • Tags: Bank Exams

    Area problems


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    • 1. ABC is a triangle. AB = 5 cm, AC = ?41 cm and BC = 8 cm. AD is perpendicular to BC. What is the area (in cm2) of triangle ABD?

    • Options
    • A. 12
    • B. 6
    • C. 10
    • D. 20
    • Discuss
    • 2. The radius of two circles is 3 cm and 4 cm. The distance between the centres of the circles is 10 cm. What is the ratio of the length of direct common tangent to the length of the transverse common tangent?

    • Options
    • A. ?51 : ?68
    • B. ?33 : ?17
    • C. ?66 : ?51
    • D. ?28 : ?17
    • Discuss
    • 3. AB and AC are the two tangents to a circle whose radius is 6 cm. If ?BAC = 60 deg, then what is the value (in cm) of ?(AB2 + AC2) ?

    • Options
    • A. 6?6
    • B. 4?6
    • C. 9?3
    • D. 8?3
    • Discuss
    • 4. Triangle ABC is similar to triangle PQR and AB : PQ = 2 : 3. AD is the median to the side BC in triangle ABC and PS is the median to the side QR in triangle PQR. What is the value of (BD/QS)2 ?

    • Options
    • A. 3/5
    • B. 4/9
    • C. 2/3
    • D. 4/7
    • Discuss
    • 5. The area of a trapezium is 21 sq cm, the distance between the parallel sides is 3 cm and one of the parallel sides is 8.3 cm. What is the length of the other parallel side?

    • Options
    • A. 12.7 cm
    • B. 7.7 cm
    • C. 10.7 cm
    • D. 5.7 cm
    • Discuss
    • 6. The average of runs of a cricket player of 10 innings was 32. How many runs must he make in his next innings so as to increase his average of runs by 4 ?

    • Options
    • A. 76
    • B. 79
    • C. 85
    • D. 87
    • Discuss
    • 7. A grocer has a sale of Rs 6435, Rs. 6927, Rs. 6855, Rs. 7230 and Rs. 6562 for 5 consecutive months. How much sale must he have in the sixth month so that he gets an average sale of Rs, 6500 ?

    • Options
    • A. 4991
    • B. 5467
    • C. 5987
    • D. 6453
    • Discuss
    • 8. The average of 20 numbers is zero. Of them, at the most, how many may be greater than zero ?

    • Options
    • A. 0
    • B. -1
    • C. 1
    • D. none of these
    • Discuss
    • 9. The average weight of 8 persons increases by 2.5 kg when a new person comes in place of one of them weighing 65 kg. What might be the weight of the new person ?

    • Options
    • A. 70 kg
    • B. 75 kg
    • C. 80 kg
    • D. 85 kg
    • Discuss
    • 10. The average of five consecutive odd numbers is 61. What is the difference between the highest and lowest numbers :

    • Options
    • A. 4
    • B. 8
    • C. 12
    • D. 16
    • Discuss


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