Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
CFI, HJL, MNO, RRR, ?
Correct Answer :
WVU
Solution :
The correct option is WVU.
To find the missing letter-cluster, let us examine the pattern followed by each letter position across the series using their alphabetical positions:
First letters:
C (3) + 5 = H (8)
H (8) + 5 = M (13)
M (13) + 5 = R (18)
R (18) + 5 = W (23)
Second letters:
F (6) + 4 = J (10)
J (10) + 4 = N (14)
N (14) + 4 = R (18)
R (18) + 4 = V (22)
Third letters:
I (9) + 3 = L (12)
L (12) + 3 = O (15)
O (15) + 3 = R (18)
R (18) + 3 = U (21)
Combining the resulting letters from each position gives WVU.
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