The average of marks in Mathematics for 5 students was found…

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The average of marks in Mathematics for 5 students was found to do 50. Later, it was discovered that in the case of one student the marks 48 were misread as 84. The correct average is :

  1. A. 40.2
  2. B. 40.8
  3. C. 42.8
  4. D. 48.2

Answer: Option C

Here is complete explanation of The average of marks in Mathematics for 5 students was found….

Solution(By ExamCraze Team)

According to the question,
Correct average
$$eqalign{ & = frac{{5 times 50 + 48 - 84}}{5} cr & = frac{{250 - 36}}{5} cr & = frac{{214}}{5} cr} $$
= 42.8

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