EduGoog

Which is the third number to the left of the number which is exactly in the middle of the following sequence of numbers ?
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

Option:
A. 3
B. 4
C. 5
D. 6
E. 7
Answer: B . 4

Justification:

There are 27 numbers in the given sequence.
So, middle number = 14th number = 9.
Clearly, the third number to the left of this 9 is 4.

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