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Middle term of an arithmetic progression

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Problem

The n, start superscript, start text, t, h, end text, end superscript and left parenthesis, n, plus, 8, right parenthesis, start superscript, start text, t, h, end text, end superscript terms of an arithmetic progression are 10 and 36 respectively.
Find the value of the term lying exactly in between these terms.
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3, slash, 5
  • a simplified improper fraction, like 7, slash, 4
  • a mixed number, like 1, space, 3, slash, 4
  • an exact decimal, like 0, point, 75
  • a multiple of pi, like 12, space, start text, p, i, end text or 2, slash, 3, space, start text, p, i, end text
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