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. - 840, 168, 42, 14, 7, (…….)

B. 7

In following alphabet series , one term missing as shown by question mark . Choose missing term from options. - Z, U, Q, ?, L

D. N

In alphabet series, some alphabets are missing which are given in that order as one of the alternatives below it. Choose the correct alternative. - _ aba _ cabc _ dcba _ bab _ a

A. ABDCA

In following alphabet series , one term missing as shown by question mark . Choose missing term from options. - A, Z, X, B, V, T, C, R, ?, ?

A. P, D

In following questions, one term in number series is incorrect. - Find out the incorrect number 5, 10, 17, 24, 37

C. 24