Math, asked by Aqib2437, 1 year ago

Three maths classes: A, B and C take an algebra test. The average score of class A is 83. The average score of class B is 76. The average score of class C is 85. The average score of class A and B is 79 and average score of class B and C is 81. What is the average score of classes A, B, C ?
A) 81
B) 78
C) 80.5
D) 81.5

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Answered by Anonymous

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Three maths classes: A, B and C take an algebra test. The average score of class A is 83. The average score of class B is 76. The average score of class C is 85. The average score of class A and B is 79 and average score of class B and C is 81. What is the average score of classes A, B, C ?
A) 81
B) 78
C) 80.5
D) 81.5

Answer: D)81.5

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