The average mark of student in 4 subjects is 75 If…

Are you looking for correct answer of The average mark of student in 4 subjects is 75 If…? Here we have shared detailed answer with explanations.

The average mark of student in 4 subjects is 75. If the student obtained 80 marks in the fifth subject, then the new average is-

  1. A. 72.5
  2. B. 76
  3. C. 77
  4. D. 77.5

Answer: Option B

Here is complete explanation of The average mark of student in 4 subjects is 75 If….

Solution(By ExamCraze Team)

Sum of marks in 4 subjects
= 75 × 4
= 300
Sum of marks in 5 subjects
= 300 + 80
= 380
∴ New average
= $$frac{380}{5}$$
= 76

Leave a Comment