There is no such RMB. This question deliberately confuses the concepts of income and expenditure: income: 25 yuan collected by the shopkeeper+2 yuan hidden by the waiter =27 yuan; Expenditure: 3 people each spent 9 yuan =9X3=27 yuan; In this process, income and expenditure are balanced, so there is no problem of one dollar ~ ~

Fortunately, I've done it before ~ ~ ~ ~ ~