3,6,18,21,63,-------
A189
B65
C66
D75
A189
B65
C66
D75
Related Questions:
ശ്രേണിയിലെ തെറ്റായ സംഖ്യ കണ്ടെത്തുക
0 ,6, 24, 60, 120, 220, 336
Select the number that can replace the question mark (?) in the given number series.
5, 9, 16, 29, ?, 103
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?