Civil Service Exam Reviewer · Number Series · hard

What number(s) should complete the series: 4, 13, 29, 54, 90, 139, ?

  1. 188
  2. 204
  3. 155
  4. 203

Answer

D. 203

Solution

Differences are perfect squares 3², 4², …; add 8² = 64: 203.

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