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In "Number Series" question, a number series is given with one term missing. Choose the correct alternative that will same pattern and fill in the blank spaces

In following question, a number series is given with one term missing. Choose the correct alternative that will same pattern and fill in the blank spaces.

66, 36, 18,

Option:
A. 3
B. 6
C. 8
D. 9
Answer: C . 8

Justification:

Each number is the series is the product of the digit of the preceding number.
Thus, 6 * 6 = 36,
3 * 6 = 18  and so on.
.'. Missing number = 1 * 8 = 8.

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