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Test # 104


1.
Three math classes: X, Y, and Z, take an algebra test.
The average score in class X is 83. The average score in class Y is 76.
The average score in class Z is 85.
The average score of all sudents in classes X and Y together is 79.
The average score of all students in classes Y and Z together is 81.
What is the average for all the three clalsses?

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Quantitative Aptitude
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Idiom of the Day

flea in one`s ear
an annoying hint, an idea or answer that is not welcome
Our boss has a flea in her ear about changing the way that our holiday schedule works.

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