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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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    • 1. The average monthly salary of 24 employees in an organisation is Rs. 1500. If the manager's salary is added, then the average salary increases by Rs. 400. What is the manager's monthly salary ?

    • Options
    • A. Rs. 8840
    • B. Rs. 11,500
    • C. Rs. 12,800
    • D. Rs. 9450
    • Discuss
    • 2. On a school?s Annual day sweets were to be equally distributed amongst 112 children. But on that particular day, 32 children were absent. Thus the remaining children got 6 extra sweets. How many sweets was each child originally supposed to get ?

    • Options
    • A. 14
    • B. 16
    • C. 12
    • D. 15
    • Discuss
    • 3. There are 44 students in a hostel, due to the administration, 15 new students has joined. The expense of the mess increase by Rs. 33 per day. While the average expenditure per head diminished by Rs. 3, what was the original expenditure of the mess ?

    • Options
    • A. Rs. 404
    • B. Rs. 514
    • C. Rs. 340
    • D. Rs. 616
    • Discuss
    • 4. The average expenditure of the hotel when there are 10 guests is Rs. 60 per guests and the average expenditure is Rs.40 when there are 20 Guests. If it is known that there are some fixed expenses irrespective of the number of guests then the average expenditure per guest whe there are 40 guests in the hotel.

    • Options
    • A. Rs. 30
    • B. Rs. 25
    • C. Rs. 20
    • D. can't be determined
    • Discuss
    • 5. In a village the average age of n people is 42 years. But after the verification it was found that the age of a person had been considered 20 years less than the actual age, so the new average, after the correction,increased by 1. The value of n is :

    • Options
    • A. 21
    • B. 20
    • C. 22
    • D. None of these
    • Discuss
    • 6. The average age of husband, wife and their child 3 years ago was 27 years and that of wife and the child 5 years ago was 20 years. The present age of the husband is

    • Options
    • A. 30
    • B. 40
    • C. 50
    • D. 60
    • Discuss
    • 7. The average value of property of Mittal, Ambani and Singhania is Rs.11111 crore. The property of Singhania is as less than the property of Mittal is greater than the average property of both the Singhania and Mittal. The value of property of Ambani is :

    • Options
    • A. Rs.111 crore
    • B. Rs. 1111 crore
    • C. Rs. 11111 crore
    • D. can't be determined
    • Discuss
    • 8. 8 years ago there were 5 members in the Arthur's family and then the average age of the family was 36 years. Mean while Arthur got married and gave birth to a child. Still the average age of his family is same now. What is the age of his wife at the time of his child's birth was.If the difference between the age of her child and herself was 26 years.

    • Options
    • A. 25 years
    • B. 26 years
    • C. 20 years
    • D. can't be determined
    • Discuss
    • 9. The average of 26,29,n,35 and 43 lies between 25 and 35. If n is always an integer and greater than the average of the given integers then the value of n is :

    • Options
    • A. 33
    • B. 34
    • C. 33
    • D. None of these
    • Discuss
    • 10. 20 men went to a restaurant. Ninteen of them paid Rs.70 each and the twentieth man paid Rs.90.25 more than the average of all the 20 men. What is the total bill ?

    • Options
    • A. Rs. 1495
    • B. Rs. 548
    • C. Rs. 850
    • D. Rs. 1750
    • Discuss


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