In following questions, one term in number series is incorrect. - Find out the incorrect number 5, 10, 40, 80, 320, 550, 2560

C. 550

In following number series, two terms have been put within brackets. Choose the appropriate option - 9 , 12 , 11 , 14 , 13 , x , 15

B. 16

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. - 2 / √5, 3 / 5, 4 / 5√5, 5 / 25,(.....)

B. 6 / 25?5

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. - 17, 19, 23, 29, , 37

A. 31

In following alphabet series , one term missing as shown by question mark . Choose missing term from options. - BEH, KNQ, TWZ, ?

B. CFI