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Q:

पांच लड़कियों की औसत आयु 11 है। उनमें से सबसे बड़ी 15 वर्ष की है। अन्य की औसत आयु क्या है?

  • 1
    9
  • 2
    4
  • 3
    12
  • 4
    10
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Answer : 4. "10"

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