1 , 5 , 13 , 25 , 41 , _____
A64
B61
C81
D71
A64
B61
C81
D71
Related Questions:
ശ്രേണിയിലെ അടുത്ത സംഖ്യ ഏത്?
5, 6, 10, 19, 35, ?
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?