One night in 30 yuan.

Three people each paid 10 to make up 30 yuan and gave it to the boss.

Later, the boss said that it was enough to give 25 yuan a discount today.

Take out 5 yuan and ask the waiter to return it to them.

The waiter secretly hid 2 yuan,

Then,

Divide the remaining 3 yuan money among three people,

Everyone gets 1 yuan.

In this way,

Everyone handed in 10 yuan.

Now it's back to 1 yuan,

Namely 10- 1=9,

Everyone only spent 9 yuan's money,

Three people each, 9 yuan,

3×9 = 27 yuan+2 yuan hidden by the waiter =29 yuan,

Where's the other dollar?

Answer:

30 yuan -25 yuan = 3 people in 5 yuan actually turned over to 8.3 yuan (3 cycles) =25 yuan.

The waiter took 2 yuan +3 people and each got 1 yuan +25 yuan =30 yuan.

3 people 1 people get130 yuan, 0 yuan.

The boss returned 5 yuan, which was given to the waiter. At this time, three people actually took it out, each with 8.33 yuan.

The waiter gave it back to 3 yuan. At this time, everyone actually took out 9.33 yuan.

9.3X3=28 28+2=30

1. There is an 8-meter-deep well. A snail climbs up from the bottom of the well, climbing 3 meters during the day and falling 2 meters at night. How many days can a snail climb out of the well?

2. 1 yuan How many peaches can a peach eat? If you want to understand the news, write down the way to eat peaches ~ ask the master for advice

A thief was found by the police, and the police chased the thief. The thief ran and ran, and a river appeared before him. This river is 12 meters wide. There is a tree next to the thief and the policeman. The height of the tree is 12 meters, and all the leaves on the tree are gone. The thief was 6 meters long and surrounded by a collar. He asked the thief how to cross the river.

1, Xiao Fang's family consists of father, mother and brother. Xiaofang is 10 years old this year. His father is two years older than his mother. The total age of the whole family is 85 years old this year. The family was 60 years old eight years ago. How old is father, mother and brother this year?

2. Xiaoming has 8 stamps, 1 and 2 stamps, with a total value of 65438+2 0 yuan stamps. How many stamps does he have at least?

3. Use addition, subtraction, multiplication and division of four operation symbols to make the following equation hold.

5 5 5 5 5 5 5 5 5 5 = 1000