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649

Q:

The sum of N numbers is 78. The average of the first three numbers is 2, the average of the next four numbers is 5.5 and the average of the remaining five numbers is 10. The average of the N numbers taken together is?

  • 1
    5.5
  • 2
    6
  • 3
    6.5
  • 4
    7
  • 5
    8.5
  • Show Answer
  • Workspace

Answer : 3. "6.5"

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