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Test # 104
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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?

Quantitative Aptitude Test 104

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the reality of the situation
the way that a situation really is
The reality of the situation is that it is very difficult to enter that university.
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