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In Obana Xiaodong's math contest, it is stipulated to do a correct question and get 20 points. If you do something wrong, deduct 12 points.
Floret score =208÷2+64÷2= 136.

Xiaodong score =208÷2-64÷2=72.

Xiaohua answered several questions correctly = (136+10×12) ÷ (20+12) = 8 questions.

Xiao Dong answered several questions correctly = (72+10×12) ÷ (20+12) = 6 questions.

So,

Xiaohua answered 8 questions correctly and Xiaodong answered 6 questions correctly.

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