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. - 12, 32, 72, 152,

A. 312

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. - 1, 2, 3, 6, 9, 18, , 54

B. 27

In following alphabet series , one term missing as shown by question mark . Choose missing term from options. - ejo, tyd, ins, xch, ?

B. MRW

In alphabet series, some alphabets are missing which are given in that order as one of the alternatives below it. Choose the correct alternative. - _ acca _ ccca _ acccc _ aaa

B. CAAA

In following number series, two terms have been put within brackets. Choose the appropriate option - 15,31,63,127,255,x

B. 511