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Mathematics, 01.11.2020 14:00 vanna7353

During a fete, there was a game show called "The Big 20". A contestant is paid Nu 5 for each correct answer, but must pay back Nu 4 for each wrong answer. After answering 20 questions on
the show, Sonan won Nu 55. How many questions did he answer correctly?

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During a fete, there was a game show called "The Big 20". A contestant is paid Nu 5 for each correc...
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