Alphabet Number Series Quiz Set 161

Which letter will be the 3th from right if 1st and 2nd, 3rd and 4th and so on are interchanged in the word IMPERFORATED?

In the sequence of alphabets and digits below, how many pairs are such that the first item is an alphabet but the second is a number?

B 3 T U 8 2 6 J R Q 1 1 4 9 V 7 Y L E Z

Study the following series.

$ H % 5 J E K Y W V N T C 9 @ A D Z O 6

Find what should come in place of the question mark(?)

H5, JK, YV, ?

Study the following series.

1 S B M V @ K J C N 8 D Y A E R 6 H 2 X

Find what should come in place of the question mark(?)

V@, JN, 8A, ?

If the first half of the following series is reversed, then which item is 8th to the right of the 15th item from the right side? The series is:

F L U P M + A $ S G 7 Y N C V @ 1 9 O X