Respuesta :

It' 185.

Poof:

This is an arithmetic progression with 1st term = 1 and d= 1, common difference
Term ranked "n" = a₁ + (n-1).d
Term ranked 185th = 1 +(185-1)x1 = 185

Hello!

We know that:

 1 to 9: 9 digits 
10-99: 200 digits 

So as we can clearly see, 9+200 is 24 more than 185, so, in that case,  the last number is 12 behind 99. 99-12=87 
And of course, the pattern keeps going up to ...858687, and 7 is the 185th digit.

So yes, The Correct Answer is that 7 is the 185th digit.!

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-TheOneAboveAll :D