1.

Which is the third number to the left of the number which is exactly in the middle of the following sequence of numbers?_x005F_x000D_ 1  2  3  4  5  6  7  8  9  2  4  6  8  9  7  5  3  1  9  8  7  6  5  4  3  2  1

A. 3
B. 5
C. 4
D. 7
Answer» D. 7


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