Civil Service Exam Reviewer · Number Series · hard

What number(s) should complete the series: 5, 22, 10, 19, 20, 16, , ?

  1. 40, 13
  2. 13, 40
  3. 30, 13
  4. 40, 14

Answer

A. 40, 13

Solution

Odd positions multiply by 2 (5, 10, 20, …); even positions subtract 3 (22, 19, 16, …). Next: 40, 13.

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