In following number series, two terms have been put within brackets. Choose the appropriate option - 4 , 9 , 5 , 12 , 7 , 15 , 8 , x , 10.

B. 18

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. - 3, 9, 27, 81,

B. 243

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. - 5, 6, 7, 8, 10, 11, 14,

A. 15

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. - 0, 2, 3, 5, 8, 10, 15, 17, 24, 26,

A. 35

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. - 5, 6, 9, 15, , 40

B. 25