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36. What figure should replace the question mark?
  IQ test. Free iq test online # 1 with answers and solutions. Question # 36. What figure should replace the question mark?
 

Explanation:
Upper number = (lower left number + middle left number) - (lower right number - middle right number) ÷ 2. (7 + 5) - (8 - 2) ÷ 2 = 9; (8 + 5) - (9 - 3) ÷ 2 = 10; (12 + 11) - (15 - 3) ÷ 2 = 17.