1, 34 students in Class 3, Grade 4. Pricing 33 yuan, giving away 4 photos. In addition, each piece is printed in 2.3 yuan. Everyone in the class wants one. How much is one? How much is a normal photo?
2. It takes six hours for a car to travel 580 kilometers from A to B. On the way, some expressways are expressways and the other part is ordinary highways. It is known that the speed of automobiles on expressways is120km, and that on ordinary highways is 80km. How many kilometers has the car traveled on the expressway?
3. Xiaohua's home is 2300 meters away from school, and he goes to walking to school every day. One day, he was moving at a speed of 80 meters per minute. When he looked up, he found that he would be late. He immediately switched to running at a speed of 150 meters per minute and arrived at school on time in 20 minutes. How far does Xiaoming start running from school?
4, the fourth grade mathematics classic application questions and answers: 84 kilograms of soybeans can squeeze out 12 kilograms of oil. According to this calculation, how many kilograms of soybeans do you need to squeeze 120 kilograms of oil?
5. A rope is divided into three sections, the first and second sections are 38.7m, the second and third sections are 465,438+0.6m, and the first and third sections are 39.7m.. How long are these three pieces of rope?
6. Three baskets of apples * * * weight 1 10.5 kg. If you take out 18.6 kg from the first basket, 23.5 kg from the second basket and 20.4 kg from the third basket, then the remaining apples in the three baskets weigh the same. How many kilograms were there in the original three baskets?
7. Xiaoming and Xiaohua both leave home for school at 7:30 in the morning. Xiaoming walks 120 meters per minute, and Xiaohua walks 80 meters per minute. When Xiaoming arrived at school five minutes later, he found that he had forgotten to bring his pen, so he went home to get it. At 7: 55, he met Xiaohua on the road. How far is it from school to home?
8. A student's home is 3 kilometers away from school. He goes to school by bike every morning at a speed of15km, and arrives at school on time. One morning, due to the headwind, he could only ride at the speed of 10 km/h at the starting point of 10 km/h. At what speed should he get to school on time for the rest of the journey?
9. There are two kinds of tickets for a concert: 40 yuan and 60 yuan. 60 yuan has 100 seats and 40 yuan has 250 seats. Box office income 15000 yuan. How many people are in the audience? It is known that both kinds of tickets are sold in whole tens. )
10 once, Xiao Ming brought a basket of yamanashi from the mountains. He called Xiaogang and Xiao Qiang and said to them, "I'll give you some pears first, and the rest are mine." So, he gave half a yamanashi to Xiaogang, and then added 1 to Xiaogang. Then, he gave the remaining half to Xiao Qiang, added 1 to Xiao Qiang, and finally left five yamanashi for himself. How many yamanashi are there in a * *?
Reference solution:
1, fixed price+printing price = * * * payment * * payment ÷ number of students = payment per photo.
33+2.3×(34-4)= *** Payment ÷34=
2, the speed of the car on the highway × the time of the car on the highway = the distance of the car on the highway.
120×[580-80×6)÷( 120-80)]=
3. Running speed × running time = running distance
150×[(2300-80×20)÷( 150-80)]=
4. Bean required for pressing 1 kg soybean oil × kg soybean oil = number of soybeans required.
(84÷ 12)× 120= required soybean quantity.
5. The total length of the rope-the first and second sections = the length of the third section of the rope.
(38.7+4 1.6+39.7)÷2-38.7= the length of the third rope.
Similarly, we can find the length of the other two paragraphs.
6. The same weight+18.6kg = the weight of the first basket.
(110.5-18.6-23.5-20.4) ÷ 3+18.6 = the weight of the first basket.
Similarly, we can find the weight of the other two baskets.
7. The walking distance between Xiao Ming and Xiao Hua ÷2= the distance from school to home.
[80× (7: 55-7: 30)+120× (7: 55-7: 30-00: 05)] = the distance from school to home.
8. Remaining distance ÷ remaining time = riding speed of remaining distance
(3-1) ÷ [(3-15)-(1-10)] = the riding speed of the remaining distance.
9. 1. We assume that 100 seats in 60 yuan are all sold out, and those in 40 yuan will be sold for (15000- 100×60) yuan. That's 9000 yuan.
The quotient of 9000÷40=225 is not an integer of 10.
If 90 seats are sold for 65,438+000 seats at 2.60 yuan, then the seats in 40 yuan will be sold for (65,438+05,000-90× 60) yuan. That's 9600 yuan.
The quotient of 9600÷40=240 is 10.
So: 60 yuan sold 90 copies and 40 yuan sold 240 copies.
10, number of pears in Xiaoming+number of pears in Xiao Qiang+number of pears in Xiaogang = total number of pears.
5+(5+2)+(5+5+2+2)= the total number of pears.