### Brain Teasers

# Count Me In

What letters come next in this series?

Figure out as many as you can.

O, N, E, T, W, H, R, F, U, I, V, S, X, G, L, ?, ?, ?, ?, ?, ...

Figure out as many as you can.

O, N, E, T, W, H, R, F, U, I, V, S, X, G, L, ?, ?, ?, ?, ?, ...

### Hint

Try counting: one, two, ...### Answer

Next is Y, then D, A, M, B, Q, P, and C.The letters are in order of when they first appear in the counting numbers (starting with "one").

Here are the numbers written out, with each letter as a capital the first time it appears:

ONE TWo tHRee FoUr fIVe SiX seven eiGht nine ten eLeven ...

twentY ...

one hunDred ...

one thousAnd ...

one Million ...

one Billion ...

one Quadrillion ...

one sePtillion ...

one oCtillion ...

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