Math, asked by garv5749, 1 month ago

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Question:
Three maths classes: X, Y, and Z take an algebra test. The average score of class X is 83. The average score of class Y is 76. The average score of class Z is 85. The average score of class X and Y is 79 and the average score of class Y and Z is 81. What is the average score of the combined classes X, Y, and Z?

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Answers

Answered by prettyjiya08

2

(i) 5y / 4

(ii) 81.5

this is the ans

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