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 question, a number series is given with one term missing. Choose the correct alternative that will same pattern and fill in the blank spaces. - 121, 225, 361,

C. 529

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 question, a number series is given with one term missing. Choose the correct alternative that will same pattern and fill in the blank spaces. - 1, 2, 3, 6, 9, 18, , 54

B. 27

In following number series, two terms have been put within brackets. Choose the appropriate option - 15,31,63,127,255,x

B. 511