That's because if there are 4 lines there is generally a 75% chance that one of ... | Hacker News

Hacker Newsnew | past | comments | ask | show | jobs | submit

bostonvaulter2 on Dec 9, 2011 | parent | context | favorite | on: A single line to 3 cashiers is ~3x faster than a s...

That's because if there are 4 lines there is generally a 75% chance that one of the other lines was faster.

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact