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     EduGorilla 
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    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 students 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 score for all the three classes?

    Options :-

    1. 81
    2. 81.5
    3. 82
    4. 82.5
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Reply To: Three Math classes: X, Y, and Z, take an algebra test. The average score in class X is 83. The avera….
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