The average marks obtained by a class of 60 students is…

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The average marks obtained by a class of 60 students is 65. The average marks of half of the students is found to be 85. The average marks of the remaining students is :

  1. A. 35
  2. B. 45
  3. C. 55
  4. D. 65

Answer: Option B

Here is complete explanation of The average marks obtained by a class of 60 students is….

Solution(By ExamCraze Team)

Let us take 30 students average marks = x
Then,
30x + (3 × 85) = 60 × 65
x = 130 - 85
x = 45

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