In following number series, two terms have been put within brackets. Choose the appropriate option - Look at this series: 53, 53, 40, 40, 27, 27, . . .What number should come next ?

B. 14

In alphabet series, some alphabets are missing which are given in that order as one of the alternatives below it. Choose the correct alternative. - a _ cdaab _ cc _ daa _ bbb _ ccddd

D. BBDAC

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, 9, 17, 33, 49, 73,

A. 97

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

E. O, M

In following number series, two terms have been put within brackets. Choose the appropriate option - Look at this series: 80, 10, 70, 15, 60, . . . What number should come next?

A. 20