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What are the primary schools with math problems in the Winter Olympics?
During the Spring Festival this year, the Winter Olympics in Sochi was in full swing, and the China delegation won a winning streak and achieved good results. However, the Sochi Olympic Games still contains a lot of mathematical knowledge.

The outstanding performance of China delegation in men's singles U-pool in this year's Winter Olympics is a big black horse. China's Zhang Yiwei slipped out of the preliminaries with a high score of 90 points, and even ranked sixth in the final, which made people shine. Seeing that I was so excited, my mother asked me a question: "After a snowboarder finished skiing, six judges A got 8 1, B got 89, C got 83, D got 88, and E got neither the best nor the worst." E How many points must I take to ensure that the average score is above 85? " (Remove the best and worst results when calculating) "

This question really bothers me. I thought it over and over again, but I didn't have a clear idea. My mother gave me a hint: "If you get rid of the best and worst grades first, will it be much clearer?" I wrote the rest of the figures on paper, and suddenly it dawned on me: "If the average score is above 85, then the total score of three people should be 85*3, and the result is equal to 255. If 255-83-88=84, the score of the fourth judge is 84! "

Mom nodded and said, "Congratulations on getting it right, but the next question will be more difficult. A got 79 points, B got 88 points, C was more than D 1 point, D was more than E, and the final average score was 84 points. AB is the highest score and the lowest score. How many points did CDE get respectively? "

I thought about it and got their total score of 83*3=252. I suddenly remembered the difference between the sum and the difference in the previous Olympic math class. If I take all three numbers as e, the total score becomes 252-4-( 1+4)=243, and then 243 divided by 3 equals 8 1, and then 81+4 = 85,85+65433. My mind suddenly became clear: "86 points, d 85 points, E 8 1 point." Mom smiled and nodded: "You passed the exam successfully! You can get rid of the Olympic math problem today! " "Oh, yes!" I can't help cheering.

Mathematics is everywhere in life. As long as we observe carefully and think seriously, we will be able to solve one difficult problem after another in life.