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What should come in place of the question mark (?) in the following series ?

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What should come in place of the question mark (?) in the following series ?


177 170 159 146 ? 110
1). 132
2). 106
3). 129
4). 127

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Solution

The series follows pattern in which difference between successive terms is a prime number starting from 7.
177-7=170.
170-11=159.
159-13=146.
146-17=129.
129-19=110.
Hence, Option C is correct.

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