Which of the following letter-clusters will replace the question mark (?) in the given series?
RI, YB, FU, MN, TG, ?
- AAY
- BAZ
- CBZ
- DBY
Solution & Step-by-step Explanation
Let's analyze the pattern of the pairs in the series:
Notice that each pair consists of opposite letters of the alphabet whose positional values sum up to 27:
R (18) + I (9) = 27
Y (25) + B (2) = 27
F (6) + U (21) = 27
M (13) + N (14) = 27
T (20) + G (7) = 27
Now let's trace the progression of the first letter of each cluster:
R
+7
Y
Y
+7
F (since 25+7=32≡6, which is F)
F
+7
M
M
+7
T
T
+7
A (20+7=27≡1, which is A)
The first letter of the next cluster must be A.
The opposite letter of A is Z (1+26=27).
Thus, the missing letter-cluster is AZ.
Notice that each pair consists of opposite letters of the alphabet whose positional values sum up to 27:
R (18) + I (9) = 27
Y (25) + B (2) = 27
F (6) + U (21) = 27
M (13) + N (14) = 27
T (20) + G (7) = 27
Now let's trace the progression of the first letter of each cluster:
R
+7
Y
Y
+7
F (since 25+7=32≡6, which is F)
F
+7
M
M
+7
T
T
+7
A (20+7=27≡1, which is A)
The first letter of the next cluster must be A.
The opposite letter of A is Z (1+26=27).
Thus, the missing letter-cluster is AZ.