Puzzles & Brain Teasers : Quiz Marks - Worksheet / Test Paper

Math Puzzles & Brain Teasers

Quiz Marks

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Teacher:	You appeared for quizzes in 10 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 68.
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: 88

Solution:

Total marks in 10 subjects = 10 × 84 = 840.

Total marks in 2 English subjects = 2 × 68 = 136.

Total marks in remaining 8 subjects = 840 − 136 = 704.

Average marks in remaining 8 subjects = 704 / 8 = 88.

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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