Look carefully for the pattern, and then choose which pair of numbers comes next.

  • 28 25 5 21 18 5 14
  1.           115
  2.           107
  3.           118
  4.           510
  5.           105

Answer: Option A

Explanation:

This is an alternating subtraction series with the interpolation of a random number, 5, as every third number. In the subtraction series, 3 is subtracted, then 4, then 3, and so on.
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