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What number should replace the question mark? 125, 138, 164, ?, 255

Correct Answer: 203

Explanation:

The given number series is 125,   138,   164,   ?,   255


 


125


 


125 + 13x1 = 138


 


138 + 13x2 = 164


 


164 + 13x3 = 203


 


203 + 13x4 = 255


 


 


 


Hence, the missing number in the series is 203.


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