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A difficult problem in the first volume of the fourth grade of primary school mathematics (Western Normal University Edition).
The fourth grade problem (Olympiad) won't come to me.

1 The school organizes a spring outing. It was originally planned to take 35 people in each carriage, but five more people were arranged in one carriage. But one car broke down on the way, so we had to reschedule each car for 38 people, so 13 people were arranged in one of the cars. How many cars and students are there? The answer is 10 car, 355 students for your reference.

The school gives apples to teachers during the Spring Festival. If 8 people each have 8 kilograms, the rest have 7 kilograms, leaving 66 kilograms; If 10 people get 6 kilograms each, and the rest get 10 kilograms each, it's just over. How many teachers and how many kilograms of apples are there? There are 38 teachers and 340 kilograms of apples.

3 Construction workers move bricks, 12 people each move 7 bricks, 20 people each move 6 bricks, the rest each move 5 bricks, and finally 148 bricks are left; If 30 people each move 8 bricks, 8 people each move 9 bricks, and the rest each move 10 bricks, how many bricks are there to allocate the last 20 bricks? 432 bricks

Different characters in the formula represent different numbers. Find the number represented by each Chinese character. Oil: 6, plus: 9, fast: 8, fast: 7.

Oil; Fuel charging; Make greater efforts

Start (a disease)

+Come on!

-

Let's go, let's go.

Even if your sister is smart enough to do these questions, she can't ask me for them, and she didn't copy them from the Internet.