NDA Exam-II 2012- Which number replaces the question mark in the square?
4
Each column sums to 14:
7 + 2 + 1 + 4 = 14
3 + 8 + 1 + 2 = 14
6 + 5 + 2 +1 = 14
2 + 4 + 4 + 4 = 14
Your Answer
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