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A. B.c.d.e five students guess their grades, a said: "if I get excellent, then B is also excellent"; B said: "if I get excellent, then C is also excellent"; C said: "if I get excellent, then D is also excellent"; D said: "if I get excellent, then E is also excellent". They are not wrong, but only three people get excellent. Excuse me: which three people get excellent?
Of course, it's the last three. In other words, "if I get the best, the next person will get the best, but if he gets the best, I'm not necessarily the best." so, in alphabetical order, one of these five people gets the best, and the last one is the best, so the answer is CDE
A. Five students, B, C, D and E, participated in a mathematics unit test
A said, "if I get the best, then B also gets the best.";
B said, "if I get the best, then C also gets the best.";
C said: "if I get the best, then d also gets the best.";
D said: "if I get excellent, then E also gets excellent.";
After the results were announced, it was found that they were all right, but only three students got the best. Q: which three students got the best?
Obviously, CDE is excellent. You can bring back the problem analysis
A. Five students, B, C, D and E, guess their math scores. The title is in "supplementary explanation to the problem" (a little long)
A said, "if I get the best, then B also gets the best."
B said, "if I get the best, then C also gets the best."
C said, "if I get the best, then d also gets the best."
D said: if I get the best, then E also gets the best“
It seems to be a bit of a brain teaser, but I hope you can answer it quickly
CDE
Analysis: if the condition is "everyone is right"! Then first we can get that e must be excellent! Then according to the condition "only three people are excellent", then we can get D and C by analogy!
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