There are 24 cars in the parking lot, four wheels for cars, three wheels for motorcycles and * * * 86 wheels. Tricycle _ 10 _ _.
2.
Calculation1234+2341+3412+4123 =
= 1 1 1 10
3.
Xiaojun has written 18 pages of calligraphy and read 78 pages of stories during the holiday. He plans to write 3 pages of calligraphy and read 5 pages of story books every day. So a few days later, he read three times as many pages as he wrote a story.
，( 18+3x)3=(78+5x)
Solution: x=2 1*3=7- 1.
X=6
On the first day of Class One, every two students meet and shake hands with each other. How many times do 40 people in the class shake hands?
40-2=38
One day, tens of thousands of diamonds were stolen from a jewelry store in a city. After reporting the case, after three months of investigation, it was found that the perpetrator was definitely one of A, B, C and D. After trial, the confessions of these four people were as follows:
I was in another city the day the diamond was stolen, so I'm not a criminal.
Ding is a criminal.
C: B is a thief. I saw him selling diamonds on the black market three days ago.
D: B bears a grudge against me and intends to frame me.
Because the confession is inconsistent, it is impossible to determine who is the criminal.
After the polygraph test, I learned that only one of these four people was telling the truth, so who was the criminal?
A: Yes, he was modest as a thief, so he framed people.
5. There are numbered balls from 1 to 10 in the box. Xiaohong has taken out nine balls from the cassette four times, and the sum of the balls taken out each time is even, so the number of balls not taken out is (
) number
On Children's Day, a class of students went boating. They rented some boats. If there are four people in each boat, there will be more 1 person. If there are five people in each boat, there will be two boats to rent. How many students are there in Qiu Yi?
7 Calculation: 0.16+0.16 = _ _ _ _ (the result is written as a score).
8.3 1 1 1 1 1 1+ 12 1+ 12 1=
9.4x= 16+22
10. 1+2+3+4+5...+99+ 100