Rahim averaged 70 in his first m number of exams. After taking n more exams, he had an overall average of 75. In terms of m and n, his average for the last n exams was
A. (5m+75)/n
B. (5m/n)+75
C. (5n/m)+75
D. None of these
সঠিক উত্তরঃ
D.
None of these
Explanation:
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