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Q:

30 संख्याओं का औसत 40 है और अन्य 40 संख्याओं का औसत 30 है। सभी संख्याओं का औसत है-

  • 1
    35
  • 2
    34
  • 3
    $$34{2\over7}$$
  • 4
    34.5
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Answer : 3. "$$34{2\over7}$$ "
Explanation :

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