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  • Question
  • Sriram was conducting an experiment in which the average of 11 observations came to be 92, while the average of first five observations was 89, and that of the last five was 86. What was the measure of the 6th observation ?


  • Options
  • A. 134
  • B. 137
  • C. 139
  • D. 141

  • Correct Answer
  • 137 

    Explanation
    This can be done as,
     
    (11 × 92)  -  (5 × 89)  -  (5 × 86) 
     
    = 1012- 445 - 430 = 137
  • Tags: AIEEE, Bank Exams, CAT, GATE, Bank Clerk, Bank PO

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      The area of circle is 38.5 sq. cm. Its circumference is?

    • Options
    • A. 6.20 cm
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    • C. 22 cm
    • D. 121 cm
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    • 2. A man buys a watch for Rs1950 in cash and sells it for Rs 2200 at a credit of 1 yr. The rate of interest is 10% per annum. Then he gains or loose how much amount?

    • Options
    • A. 50
    • B. 55
    • C. 15
    • D. 45
    • Discuss
    • 3. Find the present worth of a bill of Rs.28000 due 2 years at 12% compound interest. Also find the true discount.

    • Options
    • A. 300
    • B. 350
    • C. 250
    • D. 275
    • Discuss
    • 4. The true discount on Rs.1600 due to after a certain of 5% per annum is Rs.160. The time after which it is due is

    • Options
    • A. 27months
    • B. 23months
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    • 5. 
      In a triangle ABC, BC = 5 cm AC = 12 cm and AB = 13 cm. The length of a altitude drawn from B on AC is?

    • Options
    • A. 4 cm
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    • 6. 
      The perimeter of an isosceles triangle is equal to 14 cm . The lateral side is to the base in the ratio 5 : 4 the area of the triangle is?

    • Options
    • A. 1/2?21 cm2
    • B. 3/2?21 cm2
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    • 7. 
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    • Options
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    • Options
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    • 9. 
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    • Options
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    • 10. 
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    • Options
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