Civil Service Exam Reviewer · Number Series · hard

What number(s) should complete the series: 1, 37, 2, 34, 4, 31, , ?

  1. 28, 8
  2. 6, 28
  3. 8, 29
  4. 8, 28

Answer

D. 8, 28

Solution

Odd positions multiply by 2 (1, 2, 4, …); even positions subtract 3 (37, 34, 31, …). Next: 8, 28.

More Number Series questions

  1. What number(s) should complete the series: 10, 17, 28, 41, 58, 77, ?
  2. What number(s) should complete the series: 7, 8, 12, 21, 37, 62, ?
  3. What number(s) should complete the series: 19, 23, 29, 31, 37, ?
  4. What letter should complete the series: A, C, F, J, O, ?
  5. What number(s) should complete the series: 3, 9, 5, 15, 11, 33, ?
  6. What number(s) should complete the series: 8, 15, 29, 57, 113, ?
  7. What number(s) should complete the series: 18, 23, 30, 39, 50, 63, ?
  8. What number(s) should complete the series: 2, 6, 12, 72, 864, ?
  9. What should complete the series: XLI, XXXV, XXIX, XXIII, ?
  10. What letter pair should complete the series: CX, EV, GT, IR, ?

All Number Series questions