Math, asked by avika6811, 1 year ago

The average of a student in 4 subjects is 75 if the tudents obtained 80 marks in the 5th subject,then new average is

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Answered by Anonymous
6
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Answered by abhi569
5
75 = (x1+x2+x3+x4)/4

75*4= (x1+x2+x3+x4)

300 = (x1+x2+x3+x4)

if one other(80) is added, then 

average = (300+80)/5

average = 380/5

average = 76

then new average is 76 marks
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