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In Number sequece questions, you are given a long series of numbers. It is required to find out how many times a number satisfying conditions, specified in the questions, occurs.

If the first and second digits in the sequence 5 9 8 1 3 2 7 4 3 8 are interchanged, also the third and fourth digits, the fifth and sixth digits and so on, which digit would be the seventh counting to your left ?

Option:
A. 1
B. 4
C. 7
D. 6
E. None of these
Answer: D . 8

Justification:

The new sequence becomes 9  5  1  8  2  3  4  7  8  3.
Counting to the left, the seventh number is 8.

 

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