MCQOPTIONS
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MCQOPTIONS
| 1. |
Q: 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» E. | |