the average marks of 30 students are 45 but after checking there are two mista

Question

the average marks of 30 students are 45 but after checking there are two mistakes found. after adjustment if a student got 45 more marks and other student got 15 less marks, then what will be average?

Options:

A . 11

B . 22

C . 33

D . 44

Answer: Option D
Explanation :

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