Question : Directions: Which of the following letter clusters will replace the question mark (?) in the given series to make it logically complete?
EY 14, ?, IW 20, KV 24, MU 26
Option 1: GY 19
Option 2: HZ 18
Option 3: GX 18
Option 4: HY 19
Correct Answer: GX 18
Solution : Given:
EY 14, ?, IW 20, KV 24, MU 26
For letter-based series –
Add 2 in the place value of the first letter and subtract 1 from the place value of the second letter of the previous term of the given series.
EY→E + 2 = G; Y – 1 = X→GX
GX→G + 2 = I; X – 1 = W→IW
IW→I + 2 = K; W – 1 = V→,KV
KV→K + 2 = M; V – 1 = U→MU
For number-based series –
Add 4 and 2 alternately to the previous number of the given series.
14 + 4 = 18; 18 + 2 = 20; 20 + 4 = 24; 24 + 2 = 26.
So, GX 18 is the missing term in the series. Hence, the third option is correct.