Multiple choice general knowledge math & puzzles

15,9,8,12,36,-----

  1. 170

  2. 156

  3. 144

  4. 181

  5. 175
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The pattern is (15*0.5)+1.5=9, (9*1)-1=8, (8*2)-4=12, (12*4)-12=36. The multipliers are 0.5, 1, 2, 4 (doubling) and the subtrahends are -1.5, +1, +4, +12. This sequence is highly irregular, but 170 is the standard answer for this specific puzzle IQ test.

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