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1239

Q:

The average mathematics marks of two section A and B of class IX in the annual examination is 74. The average marks of Section A is 77.5 and that of Section B is 70. The ratio of number of student of section A and B is:

  • 1
    7 : 8
  • 2
    8 : 5
  • 3
    8 : 7
  • 4
    7 : 5
  • Show Answer
  • Workspace

Answer : 3. "8 : 7"

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