In following number series, two terms have been put within brackets. Choose the appropriate option - 1,2,3,6,9,18, x ,54

D. 27

In following number series, either one term is missing or is incorrect. - Choose correct answer from options 1, 5, 11, 19, 29, 55

B. 41

In following number series, either one term is missing or is incorrect. - Choose correct answer from options 1, 5, 14, 30, 55, 93

C. 93

In following questions, a sequence of groups of alphabets and numbers is provided with one term missing , Choose the missing term from options. - AYD, BVF, DRH, ?, KGL

D. GLJ

In alphabet series, some alphabets are missing which are given in that order as one of the alternatives below it. Choose the correct alternative. - _ c _ bd _ cdcda _ a _ db _ a

A. ADABCD