Average Practice Test 7

Question : 14 of 22

Marks: +1, -0

A teacher conducted a class test for class VIII A and VIII B. The average grade of 25 students of VIII A was 75% and that of 35 students of VIII B was 72%. The average grade for all students in both the classes is

73%
73.25%
74%
75%
80%

Validate

Solution:

Total marks of VIII A = 75 × 25 = 1,875
Total marks of VIII B = 72 × 35 = 2,520
∴ Average grade of all the students

={1,875 +2,520}/{25 +35 }

=4395/60=73.25

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