In a school, 35boys and 85girls appeared in an examination. The mean marks of boys was fpund to be 40% ,whereas the mean marks of girls was 60%. Determine the average marks percentage of the school.
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no of boys=35
mean marks of boys in %= 40%
mean marks= 40
therefore, total marks of all boys= 40*35=1400
no.of girls=85
mean marks of all girls in% = 60%
mean marks=60
total marks of all girls=60*85=5100
total marks of all students= 5100+1400=6500
total students= 85+35=120
mean marks=
6500/120
=54.166%
mean marks of boys in %= 40%
mean marks= 40
therefore, total marks of all boys= 40*35=1400
no.of girls=85
mean marks of all girls in% = 60%
mean marks=60
total marks of all girls=60*85=5100
total marks of all students= 5100+1400=6500
total students= 85+35=120
mean marks=
6500/120
=54.166%
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