Replace the question mark with number - Math Riddle
122.Math Riddles
Which number will replace the question mark ?

- A.26
- B.30
- C.25
- D.45
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Explanation : 26 14 = 1^2 + 2^2 + 3^2 21 = 4^2 + 1^2 + 2^2 29 = 4^2 + 3^2 + 2^2 26 = 3^2 + 4^2 + 1^2