Naive logic is a common type of question in judgment reasoning, but because it is time-consuming, difficult, and small, people generally avoid or even give up when doing questions. In fact, different question types are suitable for different problem solving methods, and we need to choose the appropriate method according to different question types. When we encounter the question of whether the stem is true or false, and we are not sure whether the information is true or false, we can use the hypothetical method. Today, let's master the traffic password of the hypothetical method.
Example 1] The cars of A, B, C, and D are white, silver, blue, and red. When asked about the color of their respective cars, A said, "B's car is not white. B said, "C's chariot is red." C said, "D's car is not blue." D said, "One of A, B, and C had a red car, and only that person was telling the truth."
If Ding is telling the truth, then the following statement is correct:
a.A's car is white, and B's car is silver.
b.B's car is blue, and C's car is red.
c.C's car is white, and D's car is blue.
d.D's car is silver, and A's car is red.
Analysis] Characteristics of the true/false question type: If the question stem involves true or false words, and you are not sure whether the information in the question stem is true or false, you can use the hypothetical method. According to the most important sentence in the question stem, it can be seen that driving a red car is the same person as being honest, and B's speech content mentions driving a red car, giving priority to B's information. Suppose B tells the truth, then B and C both drive red cars, which does not match the red car of one person, so B lies and does not drive red cars. Then C did not drive a red car, which was also a lie, and then it can be seen that D's car was blue. Left, A drives a red car, to be honest, then B's car is not white, B drives a silver car, and C's car is white, so the answer is C.
Example 2] **In the process of solving a case, three suspects were arrested.
A said, "B is lying."
B said, "C is lying."
C said, "Both A and B are lying."
From this, it can be deduced that the one of the three people who speaks the truth is:
a.A bB cC dNone of them.
Analysis] Characteristics of the true/false question type: If you are not sure about the truth or falsehood of the information in the question stem, you can make assumptions according to the question method. Hypothesis: If A tells the truth, then B is indeed lying, then C is telling the truth, i.e., both A and B are lying, which does not match the hypothetical premise, so A is lying. According to A's words, B tells the truth, that is, C lies, then A and B are not both lying, and the conditions are met, so it is B who tells the truth, and the answer is B.
Through the practice of the two questions, candidates should first judge the characteristics of the question type when reviewing the questions, that is, the questions are discussing the true or false questions and find that some information is uncertain whether it is true or false;Secondly, the information that is more closely related to the determining information or the question stem condition is assumed to be true (or false), and then the reasoning result is consistent with the question stem conditionIf the reasoning result conflicts with the stem conditions, it means that our hypothesis is not true, and the opposite situation is true, and then continue reasoning.