Which number replace - Math Riddle
100.Math Riddles
Which number replaces the question mark? 30 6 2 3 2 12 2 ?
- A.40
- B.50
- C.60
- D.30
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Explanation : As you can see the lower number rows are always bigger than upper row ones with the difference going up by 3 with every step 34 - 32 = 2 32 - 27 = 5 (difference going up by 3 from last difference) 56 - 48 = 8 (difference going up by 3 from last difference) ? - 19 = 11 (difference going up by 3 from last difference) So ? = 30