# Then the Average Score of Classes A, B and C is

Three Science classes A,B and C take a Life Science 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. Then the average score of classes A, B and C is

- 80.5
- 81.5
- 81
- 80