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The average score of the last 3quizzes of sofia was 83. The overall average of her 6 quizzes was 86.what was her average score for the first 3 quizzes?

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by acel1234

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by acel1234

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83 × 3 = 249

86 × 6 = 516

516 - 249 = 89

83 + 89 = 172

172 ÷ 2 = 86