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Previous Year Question (PYQs)

The mean of consecutive positive integers from 2 to n is




Solution

Step-by-step:

  • First term: 2
  • Last term: n
  • Total numbers: n − 2 + 1 = n − 1
  • Sum: (n − 1)/2 × (2 + n)
  • Mean: Sum ÷ (n − 1) = (n + 2)/2

✅ Final Answer: The mean of numbers from 2 to n is (n + 2) / 2.


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