Select the letter that can replace the question mark (?) in the following series.
O, B, L, C, I, D, F, E, ?
Answer & explanation
Correct answer: option 2

The pattern followed here is;

Thus, C, is the right answer.
Select the letter that can replace the question mark (?) in the following series.
O, B, L, C, I, D, F, E, ?
Correct answer: option 2

The pattern followed here is;

Thus, C, is the right answer.