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. - 462, 420, 380, , 306

C. 342

In following number series, two terms have been put within brackets. Choose the appropriate option - 1, ?, 5, 10, 20, 40, 80

D. 4

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, 23, 60, 121,

A. 212

In following questions, a sequence of groups of alphabets and numbers is provided with one term missing , Choose the missing term from options. - 2Z5, 7Y7, 14X9, 23W11, 34V13, ?

B. 47U15

In alphabet series, some alphabets are missing which are given in that order as one of the alternatives below it. Choose the correct alternative. - adb _ ac _ da _ cddcb _ dbc _ cbda

B. CBBAA