The marks of 20 students out of 15 in class test are as 10, 11, 12, 12.5, 13.5,

Question

The marks of 20 students out of 15 in class test are as 10, 11, 12, 12.5, 13.5, 14, 10, 11, 12, 12.5, 13.5, 14, 8, 9, 9, 8, 10, 11, 11.5, 12.5 then average marks of class is

Options:

A . 12.25

B . 11.25

C . 13.25

D . 14.25

Answer: Option B
Answer: (b).11.25

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