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What number(s) should complete the series: 12, 58, 20, 54, 28, 50, 36, ?

  1. 44
  2. 42
  3. 50
  4. 46

Answer

D. 46

Solution

Two alternating series: 12, 20, … (+8) and 58, 54, … (−4). The next term belongs to the second: 50 − 4 = 46.

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