Average Questions Answers

Average Questions Answers (MCQ) listings with explanations includes calculating average in different type of questions a which are important for many competitive exams.

21) Average of five numbers is 27. If one number is excluded the average becomes 25. The excluded number

  • 1) 35
  • 2) 45
  • 3) 55
  • 4) 65
View Answer View Explanation
Ans.   A
Explanation :
Number is (5*27) - (4*25) = 135-100 = 35

22) The average score of a cricketer for ten matches is 38.9 runs. If the average for first six matches is 42, then average for last four matches

  • 1) 33.25
  • 2) 32.25
  • 3) 34.25
  • 4) 34.50
View Answer View Explanation
Ans.   C
Explanation :
\begin{aligned} = \frac{(38.9 \times 10)-(42 \times 6)}{4} \end{aligned} \begin{aligned} = \frac{(1216 - 750)}{4} = 34.25 \end{aligned}
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