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Quiz Marks

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Teacher: You appeared for quizzes in 6 subjects, and your average marks in them were 85.
Student: How did I fare in English?
Teacher: Well, your average in English Language and English Literature is 77.
Student: So, how was my performance in the remaining subjects?
Teacher: I am sure you can figure that out for yourself.

Can you help the student find his average marks in the remaining subjects?

Answer: 89

Solution:

Total marks in 6 subjects = 6 × 85 = 510.

Total marks in 2 English subjects = 2 × 77 = 154.

Total marks in remaining 4 subjects = 510 − 154 = 356.

Average marks in remaining 4 subjects = 356 / 4 = 89.

Food for thought:

What is another term for "average" in statistics? Is it "mean", "median" or "mode"?

Wish to try another problem on "averages"? Then click here.


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