Ten tails

[MacMiller]

1+2+3+4+5+6+7+8+9=45 did you get that that's how many tails have been seal into the ten tails

Your logic is combining all the previous tails into one. So the first beast would have one. The second one would have two tails. Then the third one would have three tails. Then your logic comes in and adds all the previous ones (One Tailed, Two Tailed, and Three Tailed) to make the fourth beast, which would have six tails. And keeps adding, fifth = 12 tails, six = 24 tails etc.. You can't just add them for the Jyuubi, because if you do, you must add all the other ones then. And that's why the logic fails.

 

[Guntah]

Because 45 tails it sounds idiotic