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In a math exam, among 45 students in a class, 36 answered the first question correctly and 32 answered two questions correctly.
detailed

Only 36-22 of the first question =14.

Only 32-22 of the second question =10.

Always * * * correctly answer the first correct answer, the second correct answer and all the wrong answers in four situations.

So all the wrong answers are 48- 14- 10-22=2.

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