Question

Like Ground-Fire,Water-Grass,Steel-Ground,etc.

I would like to know an estimate of all possible types in figures(numbers),even ones that do not currently exist(eg. Fire-Water), and if there are any Pokemon in that particular typing(as in Dark-Flying = Honchkrow/Murkrow).

All 17 types should be counted,and Ghost-Dark and Dark-Ghost ARE THE SAME(but if you choose to write both,well and good;It may be more time-consuming,but easier)

Thank You all those who contributed! Your work is deeply appreciated!

P.S. I am almost sure that this wasn't asked before,but if it was please leave a comment.

Answer 1

It's a combination. Order does not matter, and each item can only be used once.

n=17 (total types)
r=2 (number possible)

T=n!/(n-r)!(r!)

T=17!/(15)!(2)!

T=(17 * 16)/(2*1)

T=272/2

T=136 Totals types.

This number only gives for dual-typed pokemon, so you would add in 17 for every pure type pokemon, making a grand total of 153 possible types.

Answer 2

This isn't a very hard question to answer you simply line up 16 symbols (does not matter what symbol)
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If I am correct there are 135 possible combinations.

Comments

I could do with a bit more info(In the question) ,but this is a nice answer :)

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Thanks it took me a while to figure out the math.