In following number series, two terms have been put within brackets. Choose the appropriate option - Choose the appropriate option (2), 5, (12), 25, 41, 61

D. IF BOTH THE BRACKETED TERMS ARE WRONG.

In following questions, one term in number series is incorrect. - Find out the incorrect number 3, 2, 8, 9, 13, 22, 18, 32, 23, 42

B. 9

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. - 12, 32, 72, 152,

A. 312

In following number series, two terms have been put within brackets. Choose the appropriate option - Look at this series: 22, 21, 23, 22, 24, 23, . . . What number should come next?

C. 25

In following questions, one term in number series is incorrect. - Find out the incorrect number 3, 7, 15, 39, 63, 127, 255, 511

B. 39