a school has four sections of class 10 having 40 35 45 and 42 students mean marks obtained in maths test are 50 45 40 and 30 respectively for the four sections determine overall average marks for student
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to find the average marks we need to obtain total individual marks of a class section
So for first section total marks obtained by the whole class=40×50=2000
for second section =35×45=1575
for third section= 45×40=1800
for last section= 42×30= 1160
Overall average marks of the students
=2000+1575+1800+1160
---—--------------------------------
40+35+45+42
=6535
------------
162
= 40.34
so average marks = 40.34
Hope it helps
please mark my answer as brainliest
So for first section total marks obtained by the whole class=40×50=2000
for second section =35×45=1575
for third section= 45×40=1800
for last section= 42×30= 1160
Overall average marks of the students
=2000+1575+1800+1160
---—--------------------------------
40+35+45+42
=6535
------------
162
= 40.34
so average marks = 40.34
Hope it helps
please mark my answer as brainliest
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