Landlord, if you think so, that 30 yuan doesn't exist at all. In fact, each of the three people went out of 9 yuan, and together they went out of 27 yuan to the boss. 25 yuan and 2 yuan for the young lady. Where is the extra 1 yuan? I remember three people paid 30 yuan, but each of them found 1 yuan. Three people only went out of 27 yuan and 27 yuan. You got it? Landlord