Rahim average 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—

গণিত Statistics and Average 07 Oct, 2020

প্রশ্ন Rahim average 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—

  • ক.
    5n/m + 75
  • খ.
    (70m + 75n)/(m + n)
  • গ.
    80
  • ঘ.
    (5m + 75)/n

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