to secure a grade one obtain an average of 90 marks in 5 subjects each of maximum 100 marks if one scored 84,87,95,91 in first four subjects what is the minimum mark one scored in tha fifth subject to get a grade in the course?
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Answer:
93
Step-by-step explanation:
average=90
number of subjects =5
sum of marks of all subjects=90×5=450
sum of all marks = 450
marks in fifth subject=450-84-87-95-91
=450-357
=93
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