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The average marks in statistics of 10 students of a class were 81. A new student took admission who scored 92 marks, whereas existing students left the college who scored 56 and 36 marks. What is the new average-marks ?a) 81b) 90c) 82.8d) 79.7 |
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Answer» Step-by-step EXPLANATION: d) 79.7 |
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