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In an arithmetic progression the 22nd term is four times the 5th term while the 12th term is 12th more than 8th term.find the first term and the common difference

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2 answers
  1. a+21d = 4(a+4d)
    since a12 = a8+12, 4d=12
    Now you can finish it off.

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    oobleck
  2. If the first term of an AP is 4 and common difference is -2, what is its 2nd term If the first term of an AP is 4 and common difference is -2, what is its 2nd term

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