50 students marks average is 80.one of the student marks 37 instead 73 entered by mistake.then find the new average of students
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Sum of marks of 50 students 50*80 = 4000
Marks to be added 73-37 = 36
New average 4000+36/50 = 80.72
Marks to be added 73-37 = 36
New average 4000+36/50 = 80.72
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