The average score of 40 students in a class test is 45 Later on it was found that at two places 25 w...........

Quantitative Aptitude (CGL) Average

The average score of 40 students in a class test is 45. Later on, it was found that at two places 25 was read as 35 and at one

place 38 wasread as 32, What is the actual average score of the class?

This questions was previously asked in

SSC CGL 17th August 2021 Shift-3

43.80

39.69

45.35

44.65

- The average score of 40 students is initially given as 45.

- This means the total score is \(40 \times 45 = 1800\).

- Two scores of 25 were read as 35. This adds an extra \(2 \times 10 = 20\) to the total.

- One score of 38 was read as 32, reducing the total by \(38 - 32 = 6\).

- The corrected total score is thus \(1800 - 20 + 6 = 1786\).

- The actual average is \(1786 \div 40 = 44.65\).

- Option 4: 44.65 is the correct answer.

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