b
The next letter in the sequence would be "A." This sequence alternates between the letters R and G, with the addition of the letter A after each occurrence of R. Therefore, following the pattern, the next letter after G would be A.
S
The sequence is neither arithmetic nor geometric.
C = 2*pi*r 8 = 2*pi*r 4 = pi*r r = 4/pi
why would the letter I be the next letter in the sequence: C A R R
A
y
b
CRC CBO and COL
C
TD,r
B
It looks as if every third letter is an "r"; the remaining letters are in sequence.
CARRY
y
y