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A math problem that shocked the world
Mathematical problems that shocked the world

Three people go for 30 yuan a night. They each paid 10 yuan to make a 30 yuan and gave it to the boss. Later, the boss said that 25 yuan was enough for today's discount, so he took out the 5 yuan and asked the waiter to return it to them. The waiter secretly hid 2 yuan's money, and then distributed the rest of 3 yuan's money to three people, each 10 yuan. In this way, everyone handed in 10 yuan at the beginning. Now back to 1 yuan, that is, 10- 1=9, each person only spent 9 yuan money, three people each 9 yuan, 3×9 = 27 yuan+2 yuan hidden by the waiter =29 yuan, where did the one yuan go?

A: Three tenants took it. Originally 3 X 9 = 27 plus 3 X (10- 1)=3 equals 30, but only 2 yuan =29 yuan hidden by the waiter was added. In other words, two of the three dollars that should have been given to the rent were lost to the waiter. What about the rest 1 money? Looking back at the original 30-2=28, three people asked for 28, that is, 9.3333 yuan per person. In fact, each person only paid 9 yuan. Then the 9.3333 yuan that should have been paid became 9 yuan, and the remaining 1 yuan?

The boss took it. 3×9 = 27 yuan+2 yuan hidden by the waiter =29 yuan, 30-29= 1. Where is the money of 1? Suppose the boss later said that he took the money from 1 privately, then it is 29+2+ 1=30.

C: Fool people!