Question 1147255
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The distance between {{{a[1]}}} and {{{a[12]}}} is given as 41+3 = 44.


There are 11 gaps between these terms, each gap is of the same length, equal to the modulus of the common difference.


So, the gap is {{{44/11}}} = 4 units, and the common difference is  -4 units.


Thus the 20-th term is  3 + 19*(-4) = -73.      <U>ANSWER</U>
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