3. The mean attendance of students in a school for five days of a week was 1050 and the mean attendance for 6 days of the same week was 1055. How many students were present on Saturday?
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Answer:
total attendance for 5 days=1050×5=5250
total attendance for 6 days =1055×6=6330
number of student present on Saturday is
(6330-5250)=1080
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