Four tourists (Zhang Hong, Yuyin, Dong Qing and the Western Regions) traveled to different islands, and everyone found wild eggs on the island (1 3). 4 people

According to "Condition ②" and "Condition ⑤", we can know whether Zhanghongdao is B or D, and there are only two possibilities. 2

Let's suppose that Zhang Hong went to Island B, and then make an inference.

According to "condition ⑥", the western region can't be on D island, and from "condition ②", I know that the lingering sound went to A island. We assume that Zhang Hong went to B island, so the western region can only be on C island, and the last remaining Dong Qing is on D island.

Echo of a knife

B hong

C Dao Xi language

D Dao Tokyo

After deducing the crowd position, the offspring input "age condition" and "egg quantity condition" for deduction and verification.

(1) According to "Condition ⑥" and "Wild Egg (1 to 3)", there are three eggs on D Island, 1 egg on Xiyu Island and 1 egg on Xiyu Island.

(2) We deduce that island C is 1 egg, and add "condition ⑤" to deduce two eggs in Zhang Hong on island B.

A Dao x Gordan lingering sound

Two eggs on Zhang Hong island B.

Xiyu c island 1 egg?

Three eggs on island D, Tokyo 18 years old.

(3) Because the islands in the Western Region have 1 egg, and each island has at least 1 egg, under conditions ③ and ④, the Western Region is not a girl, so it will not be 2 1 year old and 19 year old, so the Western Region is 20 years old.

When there are two people left, 2 1 and 19, because the reverberation is on Island A, the reverberation will not be a girl with 2 1 in Condition 3, so the reverberation can only be 19, and Zhang Hong is 2 1.

(4) There are contradictions here!

The lingering sound is in island A 19 years old. "④ Girls aged 0/9 years old found 1 egg more than girls who went to island B."

Zhang Hong lived on B Island for 2 1 year. "32 1 year-old girls found1egg more than girls who went to the island."

They contradict each other, so we can know that Zhang Hong's assumption of going to B Island is untenable!

Because we have determined that there are only two possibilities, and now we have denied one possibility through deduction, then the remaining one is the correct answer! The premise here is that the topic itself is established and there are no mistakes! )

Let's assume that Zhang Hong is going to D Island, and then verify whether it is correct. Logically speaking, this is the correct answer. If this assumption also leads to contradictions, then there is something wrong with the topic. )

(1) Because "Condition 6" can only have three eggs on D Island, and Zhang Hong is now on D Island, it can be inferred from "Condition 6" that there are two eggs on C Island.

(2) Because the island of the Western Region can only be 1 egg in Condition 6, the Western Region is not on Island C with two eggs, and because the reverberation of Condition 2 has gone to Island A and Zhang Hong should be on Island D, the Western Region can only be on Island B, and finally its east eye is on Island C.

A Dao x Gordan lingering sound

B island 1 egg? Western Regions

Two eggs on island c? 18 years old

D Dao 3 Dan Zhang Hong

The answer to age is fixed, and the conditions given in the title actually tell:

(1) Tokyo 18 years old.

(2) The Western Regions will not be 19 or 2 1 year old, but only 20 years old.

(3) The reverberation will not be 2 1 year, so 2 1 year can only be Zhang Hong.

The specific logic is:

(1) Because the islands in the Western Region have 1 eggs, and each island has at least 1 eggs, Suo Xiyu is not a girl under conditions ③ and ④, so it will not be 2 1 and 19 years old, so the Western Region is 20 years old.

(2) When there are two people left, 2 1 and 19, because the reverberation is on Island A, the reverberation will not be a girl with 2 1 in Condition 3, so the reverberation can only be 19, and Zhang Hong is 2 1.

Island a x egg? Aftersound? 19 years old

B island 1 egg? Western regions? 20 years old

Two eggs on island c? Tokyo? 18 years old

Three eggs on d island? Zhang Hong? 2 1 year

According to "Condition ③", it can be known that there are two eggs on Island A, that is, there are two eggs on Island A with a lingering sound 19 years old, which is more than that on Island B where the Western Regions are located 1, which meets the requirements of "Condition ④".

At this point, the answer is as follows, and all the conditions of the topic have been met.

Two eggs on island a? Aftersound? 19 years old

B island 1 egg? Western regions? 20 years old

Two eggs on island c? Tokyo? 18 years old

Three eggs on d island? Zhang Hong? 2 1 year