Thanks for the puzzle!
Is it possible that the question 9 is no correct?
I get a penguin with perfect simetrie except at answer 9 : 0100000 that breaks the simetry.
Is it correct or a mistake in my answer?
Thx

@Jose: There is a mistake in your answer: 243 (0100000) is the number of numbers between 10,000 and 100,000 that do not contain the digits 0, 1, 2, 3, 4, 5, or 6.

2019-01-04Is it possible that the question 9 is no correct?

I get a penguin with perfect simetrie except at answer 9 : 0100000 that breaks the simetry.

Is it correct or a mistake in my answer?

Thx

on /blog/47