Letter and Symbol Series

The group consists of 3 different series starting with Z, U and A. The first series is – 2, the second series is of vowels starting from the last in english alphabets and the third series is + 2. Hence, option 1 is correct. 

The group consists of 3 different series starting from D, E and B and moving 5 letters forward. Hence, 2^nd option is correct. 

The series moves in + 4, + 5, + 6 and so on.

The group consists of two series starting with B and D, and moving five letters forward.

The first group consists of three different letters and the second group is H + 9, K + 9, N + 9 and so on.

The last group should be Z + 9; C + 9; F + 9. 

After every 3 letters, one, two and three letters are skipped in each respective pattern. DEF (G) HIJ (KL) MNO (PQR) STU Hence, option (1) is the correct answer. 

This series follows the pattern: + 2, + 4, + 2, + 4   So, the next letter to Q will be U. Hence, option (4) is right. 

The series consists of three different series starting with A, B and Z. In each subsequent term, the first and the second letters each are moved one step forward (+ 1) and the third letter is moved one step backward (- 1). Hence, the answer is EFV. 

 The correct answer is "ba" because it forms the word "aback" as in "he was taken aback by the surprise gift from his wife."

The word is about. Adding bo to ab results in about.

The word is abbey. Adding be to ab results in abbey.

C, D, E, F, G J, K, L, M, N Q, R, S, T, U

The sequence consists of two series: A, Z, Y, X, W and B, C, D, E. The missing letter is W.

Three consecutive letters as a group are written in the reverse order.

The sequence is: – 2, – 3, – 4, – 5, – 6, – 7, etc. The next two letters are X – 8 = P and P – 9 = G.