The percentage of marks scored by 35 students in the annual examination is given below.
% of marks obtained
64
70
75
80
85
90
number of students
6
5
8
6
7
a. Find the mean percentage of the class. Give your answer rounded to 2 places of decimal.
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8
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left. But if
x chocolates are equally distributed among the same
number of students, 7 are left. How many students are there?
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0
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