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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.

How many 6's are there in the following number sequence which are immediately preceded by 9 but not immediately followed by 4 ?
5  6  4  3  2  9  6  3  1  6  4  9  6  4  2  1  5  9  6  7  2  1  4  7  4  9  6  4  2

Option:
A. One
B. Two
C. Three
D. Four
E. More than four
Answer: B . Two

Justification:

5  6  4  3  2  9  6  3  1  6  4  9  6  4  2  1  5  9  6  7  2  1  4  7  4  9  6  4  2

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