He sold a pair of shoes today.

My wife gave him 50 yuan, but he had no change.

50 yuan gave his neighbor's change.

Later, it was discovered that the man's 50 yuan was fake money.

He must compensate his neighbors for their losses.

Ask him how much he lost.

Three people in a hotel, one night in 30 yuan.

They all got together 10 yuan, just in 30 yuan.

The innkeeper said that the discount was only for 25 yuan today.

Ask the waiter to refund the remaining 5 yuan.

The waiter pocketed 2 yuan's money.

Divided into their hands, it is exactly one yuan per person.

Everyone paid 10 yuan.

Now it has been returned to 1 yuan.

It is equivalent to spending only 9 yuan per person.

3x9=27 yuan.

The waiter embezzled 2 yuan's money.

Where did the remaining dollar go?