Mathematics · Averages
The average marks of 25 students in a class was calculated to be 19. Later, the teacher realized that the marks of two students were wrongly entered as 18 and 19 instead of 14 and 15. Find the actual average marks of the class.
- 117.43
- 216.56
- 318.68✓
- 417.65
Correct answer
18.68
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