# Letter Series Question And Answer Level 6- Reasoning

##### 21.E, J, O, T, Y, __

A. D

B. Z

C. C

D. E

Explanation:

E+5, J+5, O+5, T+5, Y+5, __ The next letter in the series is Y + 5 = D.

##### 22.G, J, N, Q, U, __

A. W

B. X

C. Y

D. Z

Explanation:

G+3, J+4, N+3, Q+4, U+3, __
The next letter in the series is U + 3 = X.

##### 23.R, K, F, C, __

A. Z

B. Y

C. W

D. A

Explanation:

R-7, K-5, F-3, C, __
The values that are subtracted are consecutive prime numbers in decreasing order.
Hence, the next letter in the series is C - 2 = A.

##### 24.BY, CX, EV, GT, KP, __

A. JQ

B. MN

C. PK

D. LO

Explanation:

BY, CX, EV, GT, KP, __
The given series is a mixed series. The letters B, C, G and K are the letters in prime value positions. Hence, the next letter is M. The second letter in each group form an opposite pair of the first letter in that group. Hence, the next pair in the series is MN.

##### 25.AI, EO, IU, __, UE

A. OU

B. OI

C. UA

D. OA

Explanation:

AI, EO, IU, __, UE
The first letters in all the groups are consecutive vowels starting with A. The second letters in all the groups are consecutive vowels starting with I. Hence the missing pair is OA.

##### 26.AP, BQ, CR, DS, __

A. ET

B. EU

C. TE

D. EV

Explanation:

AP, BQ, CR, DS, __
The first letters in all the pairs, i.e, A, B, C and D form a series of consecutive letters. Similarly, the second letters P, Q, R and S form another pair of consecutive letters. Hence, the next pair in the series is ET.

##### 27.QN, RP, TS, WW, __, FH

A. AC

B. XB

C. AB

D. YC

Explanation:

The given series is a mixed series.
Pattern for the first letters:
Q+1, R+2, T+3, W+4, A+5, F
Pattern for the second letters:
N+2, P+3, S+4, W+5, B+6, H
Hence, the missing pair is AB.

##### 28.EA, IE, OK, SO, YU, __

A. WX

B. WB

C. YD

D. CY

Explanation:

The given series is a mixed series. Pattern for the first letters:,
E+4, I+6, O+4, S+6, Y+4, C
Pattern for the second letters:
A+4, E+6, K+4, O+6, U+4, Y
Hence, the next pair in series is CY.

##### 29.KPD, LOE, MNF, NMG, __

A. ONF

B. OLH

C. MLH

D. MNH

Explanation:

The given series is a mixed series.
Pattern for the first letter:
K+1, L+1, M+1, N+1, O
Pattern for the second letter:
P-1, O-1, N-1, M-1, L
Pattern for the third letters:
D+1, E+1, F+1, G+1, H
Hence, the next group in the series is OLH.

A. HEV

B. HIT

C. IET

D. IEU