Which of the following letter-number clusters will replace the question mark (?) in the given series to make it logically complete?
RAB 20, TCD 22, VEF 24, XGH 26, ?
AYIJ 28
BYIJ 26
CZIJ 28
DZJI 26
AYIJ 28
BYIJ 26
CZIJ 28
DZJI 26
Related Questions:
Refer to the given letter-cluster series and answer the question that follows.
AKMG, RTDC, WQCT, PILE, VTXF, HRXW
If in each of the letter-clusters, each letter is changed to the next letter in the English alphabetical order, how many letter-clusters thus formed will have exactly two vowels?