Zol Tun Kul
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 Jun2 comment Creating groups with 10 men and 10 women. Thank you, I think the formula in the first one confuses me. What is the logic behind it exactly? (Yeah I just used the same formula in the third question without knowing why) Jun2 comment Creating groups with 10 men and 10 women. @DanielY: Well, yeah, no reason in particular. I just used the permutations formula. I think it's the same thing? Jun2 asked Creating groups with 10 men and 10 women. Jun2 comment Creating digit sequences that can't begin with $0$, but one digit must repeat exactly once. @RossMillikan: I see. So if the question meant that the two repeated digit must be together, I would apply Bananarama's answer? Jun2 asked Creating digit sequences that can't begin with $0$, but one digit must repeat exactly once. Jun2 accepted Creating teams with exactly two men and one woman, where the order matters. Jun2 asked Creating teams with exactly two men and one woman, where the order matters. Jun2 accepted Choosing two colours of different tones. Jun2 comment Choosing two colours of different tones. @user3678068: No, it doesn't count. Jun1 asked Choosing two colours of different tones. Jun1 accepted Counting when there are two inclusive conditions. Jun1 comment Counting when there are two inclusive conditions. @vadim123: Ah, so the answer would be like $$2^7 + 2^4$$ I think? Jun1 asked Counting when there are two inclusive conditions. Jun1 comment Checking when a player has all four aces from a deck distribution. @HennoBrandsma: Yeah, you're right. I fixed it now, thanks. Jun1 revised Checking when a player has all four aces from a deck distribution. deleted 11 characters in body Jun1 asked Checking when a player has all four aces from a deck distribution. Jun1 comment Creating two groups where two people can't be in the same group. @Taladris: Hm, I think that's fine. Jun1 asked Creating two groups where two people can't be in the same group. Jun1 accepted Number of ways to form a 6-digit sequence with these constraints. Jun1 asked Number of ways to form a 6-digit sequence with these constraints.