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34. What figure should replace the question mark?
  IQ test. Accurate and free online iq test # 4 with answers and solutions. Question # 34. What figure should replace the question mark?
 

Explanation:
12 + 23 + 12 = 47; 3 + 41 + 3 = 47; 10 + 26 + 11 = 47; 15 + 9 + 23 = 47.