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20 1 1 Hangzhou Senior High School Entrance Examination Mathematics Volume
Solution: (1) (person)

(2) The fifth question was answered incorrectly by X people, and the sixth question was answered incorrectly by 2x people.

72+3x= 12×8

x=8？

18×2= 16

Answer: Eight people answered the fifth question wrong, and six people answered the sixth question 16 wrong.

(3) The figure is "omitted".

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