Question

III
Coditas Solutions - ELTP 2021 Campus Test
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42. There are three classes A, B and C with 20, 30 and 50 students respectively. The average score in mathematics of students in class B is 16 more than that of
the class C and the average score of those in class A is 2 more than the overall average of scores in A, B and C. What is the difference between average of class C
and class A?
0
[A]
3.5
[B]
8.5
49
[C]
data insufficient​

Answer 1

Answer:

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