Mean marks scored by 10 students in a class test
is 6. If mean of 4 of these 10 students is 7.5 then
find the mean of remaining students.
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Answer:
Mean = 5 Marks
Step-by-step explanation:
Mean marks of 10 students =6
Sum of marks of all students =6*10=60
Mean marks of 4 students =7.5
Sum of marks of 4 students =7.5*4=30
Total marks obtained by remaining 6 students =
60-30=30
Mean marks of 6 students =30/6=5
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