Thread: Which letter comes next?

Which letter comes next?

A C F J O

U

The letters between A and C:
B

The letters between C and F:
DE

The letters between F and J:
GHI

The letters between J and O:
KLMN

We can see that the number of letters between each letter in the sequence increases by adding the next letter. Therefore, one can deduce that the letters between O and the next letter are:
PQRST

revealing that the unknown letter is U.

Originally Posted by Chop Suey

U

You are correct. I must try to make these a little more challenging.

Strategy:

Spoiler:

A C F J O

After 1st letter 'A', skip one 'C'
After 2nd letter, skip two 'F'
After 3rd letter, skip three 'J'
After 4th letter, skip four 'O'
After 5th letter, skip five 'U'