Answer:
The next letter in the sequence is E.
Explanation:
Consider the provided sequence .
Whole number: Whole numbers are the set of natural numbers but starts with 0. i.e. 0, 1, 2, 3, 4, 5,...
Now we need to use this information to find the next letter in the sequence:
O,T,T,F,F,S,S, ?
O represents One = 1
T represents Two = 2
T represents Three = 3
F represents Four = 4
F represents Five = 5
S represents Six = 6
S represents Seven = 7
If we follow the above pattern then the next letter will be E.
E will represents Eight = 8
Hence, the next letter in the sequence is E.