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

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. - 4 / 9, 9 / 20, , 39 / 86

B. 19 / 42

In following number series, two terms have been put within brackets. Choose the appropriate option - 84 78 72 66 60 54 48What number should come next ?

B. 42 36

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. - 563, 647, 479, 815,

D. 143

In following number series, two terms have been put within brackets. Choose the appropriate option - 85,78,65,40,56,x

B. 30