In following number series, two terms have been put within brackets. Choose the appropriate option - 2 , 5 , 9 , 19 , 37 , x

B. 75

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. - 11 * 1 / 9, 12 * 1 / 2, 14 * 2 / 7, 16 * 2 / 3,

D. 20

In following questions, one term in number series is incorrect. - Find out the incorrect number 2, 5, 10, 17, 26, 37, 50, 64

D. 64

In following number series, two terms have been put within brackets. Choose the appropriate option - Look at this series: 21, 9, 21, 11, 21, 13, . . .What number should come next?

C. 21

In following questions, one term in number series is incorrect. - Find out the incorrect number 1, 5, 5, 9, 7, 11, 11, 15, 12, 17

B. 12