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Mathematics, 01.09.2020 19:01 Tanya120
10 students of a class had a mean score of 70. The remaining 15
students of the class had mean score of 80. What is the mean score of
the entire class?
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Answers: 2
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10 students of a class had a mean score of 70. The remaining 15
students of the class had mean scor...
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