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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 questions, one term in number series is incorrect.

Find out the incorrect number 125, 126, 124, 127, 123, 129

Option:
A. 126
B. 124
C. 123
D. 129
Answer: D . 129

Justification:

The sequence is + 1, - 2, + 3, - 4, + 5.
So, 129 is wrong and and must be replaced by (123 + 5)  i.e. 128.

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