1.

Select the option that can replace the question mark (?) in the following series.6, 11, 33, 65, 141, ?1. 2782. 2813. 3214. 192

Answer» Correct Answer - Option 2 : 281

The given series:6, 11, 33, 65, 141, ?
It is an alternate series as shown below:

6× 2 - 1 = 11
11× 2 + 11 = 33
33​× 2 - 1 = 65
65​× 2 + 11 = 141
141​× 2 - 1 = 281

Hence, 281 will be the next term in the series.



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