Before Applying job posting in any websites or recruiting agencies or sending resumes to job recruiters or any other employment website you need to improve your skills on general knowledge, Aptitude, Puzzles, logical reasoning, general english, database, programming as per your job profile. Job recruiters or mostly preferring job candidates who are having more stuff in those categories mentioned above. So improving more skills on your job profile always boost up your career and your performance. Even hiring companies and job recruiters who are looking for many job posting websites actually they are looking and filtering on these activities. In these Average section you need to update more questions to perform well in front of job recruiters and companies. Average Interview questions are most important to score in interview, Update all questions to score well in all rounds in job interview.

Average interview questions and answers

6)
The average price of three items of furniture is Rs. 15000. If their prices are in the ratio 3 : 5 : 7, the price of the cheapest item is :
  • Rs. 9000
  • Rs. 15000
  • Rs. 18000
  • Rs. 21000
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  • Answer
  • a) Rs. 9000
  • Explanation
  • Let their prices be 3x, 5x,and 7x.
    Then, 3x + 5x + 7x = ( 15000 * 3) or x = 3000.
    Cost of cheapest item = 3x = Rs.9000

7)
The mean of 50 observations was 36. It was found later that an observation 48 was wrongly taken as 23. The correct new mean is :
  • 35.2
  • 36.1
  • 36.5
  • 39.1
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  • Answer
  • c) 36.5
  • Explanation
  • Correct sum = (36 * 50 + 48 - 23) = 1825
    Correct mean = 1825/50 = 36.5.

8)
The average age of 15 students of a class is 15 years. Out of these, the average age of 5 students is 14 years and that of the other 9 students is 16 years. The age of the 15th student is :
  • 11 years
  • 14 years
  • 15 years
  • 15*2/7 years
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  • Answer
  • a) 11 years
  • Explanation
  • Age of 15th student = [15 * 15 - (14 * 5 + 16 * 9)] = (255 - 214) = 11 years.

9)
The average of 11 numbers is 10.9. If the average of the first six numbers is 10.5 and that of the last six numbers is 11.4, then the middle number is :
  • 11
  • 11.3
  • 11.4
  • 11.5
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  • Answer
  • d) 11.5
  • Explanation
  • Middle number = [(10.5 * 6 + 11.4 * 6 ) - 10.9 * 11] = (131.4 - 119.9) = 11.5

10)
The average age of 36 students in a group is 14 years. When teachers age is included to it, the average increase by one. What is the teacher's age in years?
  • 31
  • 36
  • 51
  • Cannot be determined
  • None of these
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  • Answer
  • c) 51
  • Explanation
  • Age of the teacher = (37 * 15 - 36 * 14) years = 51 years.