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Quiz Marks

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Teacher: You appeared for quizzes in 4 subjects, and your average marks in them were 84.
Student: How did I fare in English?
Teacher: Well, your average in English Language and English Literature is 79.
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 4 subjects = 4 × 84 = 336.

Total marks in 2 English subjects = 2 × 79 = 158.

Total marks in remaining 2 subjects = 336 − 158 = 178.

Average marks in remaining 2 subjects = 178 / 2 = 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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