In Zhang Hua's mid-term exam, the average score of Chinese mathematics is 96, the average score of mathematical English is 94, and the average score of Chinese and foreign languages is 92. How many points do you get in each of these three classes?
Let the Chinese score be X, the math score be Y, and the English score be Z.
(x+y)/2=96 ①
(y+z)/2=94 ②
(z+x)/2=92 ③
Now let ①-② get x-z=4 ④.
④ and ③ are subtracted at the same time to get X = 94 and Z = 90.
Similarly, y=98.
Chinese 94 points, math 98 points, English 90 points.
It should be like this ~ ~