Zhang Yi has an average score of 93 in Chinese and mathematics and 96 in English. What is the average score of three courses?
The average score of Chinese and mathematics is 93, so the total score of Chinese and mathematics is 93*2= 186, plus the score of English divided by the number of subjects, you can get the average score of the three subjects. So the answer is 186+96=282, and 282 divided by 3 equals 94, so the average score of three doors is 94.