1.

Which letter/number in the given alpha-numeric sequence is exactly in the middle of the 9th letter/number from the left end and 10th letter/number from the right end? (SOF IMO 2016) H 2 5 X A 3 B C Z T 4 2 1 S 6 P 9 D O W U 7 N M

A.  O     
B.  T     
C.  2     
D.  P 
Answer» D.  P 


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