2. The construction team built an 8.5km expressway, with an average of 0.65km per day in the first five days. In order to speed up the progress, an average of 0. 1 km will be built every day. How many days will it take to build the remaining roads?
3. The construction team built a 7.8km expressway, originally planned to build 0.65km per day, but actually built 0. 13km more than planned, so it can be completed several days ahead of schedule.
4. The construction team built a road, which was originally planned to be completed in 12 days, but actually built 0. 13 kilometers every day. How many days did it actually take? How many days in advance?
5. The construction team originally planned to build a 7.8km expressway in 12 days, but actually built an extra 0. 13km every day. How many days did it actually take? How many days in advance?
6. The construction team built a road, which was originally planned to be completed in 12 days, but the actual daily repair was 1.2 times as planned. How many days did it actually take? How many days in advance?
7. The construction team repaired the road, actually 0.78km per day, 0. 13km more than originally planned, and originally planned 12 days. How many days did it actually take? How many days in advance?
Seven "Yellow River" trucks transported 336 tons of sand in six times. At present, there are 560 tons of sand, which need to be transported in five trips. How many more trucks do you need?
9. A salt drying device can use100kg seawater to dry 2kg salt and17kg salt. How many tons of seawater does it need?
10, four identical looms weave 1.3 km in 2.5 hours. According to this calculation, how many kilometers do six identical looms weave in 4.5 hours?
1 1. A pig farm has 180 pigs, and every 20 pigs should be fed with 50 kilograms of concentrated feed for 5 days. How many days can the warehouse feed 3.6 tons of concentrated feed now?
12, in a room with a length of 5.6 meters and a width of 4 meters, the area of each floor tile is 0.08 square meters, and the price of each floor tile is 4.5 yuan. How much will it cost?
13. A 45-square-meter conference room was originally intended to be paved with a floor tile with a side length of 30 cm, and later it was changed into a floor. 3.8 yuan for each floor tile, floor per square meter 120 yuan. How much does it cost to replace floor tiles with floors?
14, Xiao Ming bought six pencils and four exercise books at 0.68 yuan each and 0.24 yuan each. Xiao Ming paid 5 yuan money, how much should he get back?
15, Xinhua Garment Factory spent RMB 3,703.7 on men's and women's suits, RMB 78.8 on men's wear and RMB 78.8 on women's wear 25 yuan. How much is each set?
16, Party A and Party B prepare to process 520 pieces, with Party A processing 35 pieces per hour and Party B processing 40 pieces per hour. It will take 2 hours to finish, and B will handle the rest. How many hours will it take to finish?
17. In a mountaineering process, the surveyors walk 50 meters up the mountain every minute, 18 minutes to reach the top of the mountain, and then walk 75 meters down the mountain every minute according to the original route. How long did it take the surveyors to go down the mountain?
18. A bag of rice weighs 80 kilograms, a bag of flour weighs 25 kilograms, and a car with a load of 5.4 tons can hold 20 bags of rice. How many bags of flour can it hold?
19. The reporter rides a bike from place A to place B. If they travel at the speed of 16 kilometers per hour, they can arrive in 1.5 hours. If they travel at a speed of 4 kilometers per hour, how many hours can they arrive in advance?
20. Ask questions according to the formula.
An irrigation area in a township is ready to irrigate 1080 hectares, and five pumps can irrigate 180 hectares in six days. Now, 1 same pump has been added.
( 1) 180÷5÷6:
(2)5+ 1:
(3) 180÷5÷6×(5+ 1):
First, the application problem.
1. The school library covers an area of 85 square meters, with square bricks on the ground and a side length of 0.9 meters. 100 is enough?
It takes Mr. Wang 0.25 hours to go to school by bike from home. How far is it from home to school? If he walks instead, can he walk 5 kilometers an hour and get to school in 0.8 hours?
The milk yield of the first cow in Zhangyan last Wednesday was 220.5 Jin. How many Jin is the daily output of each Niu Yi?
4. Two identical pumps can irrigate 65,438+0.2 hectares in 3 hours. 1 How many hectares can one pump irrigate per hour?
5. The 336th kilometer of the expressway. A bus completes the journey in 3.2 hours, and a truck completes the journey in 3.8 hours. How much faster is a bus than a truck?
6. Swift is the fastest bird in a long flight. Swift can fly 5 10 km in 3 hours, and homing pigeons can fly 74 km per hour. How many times faster does Swift fly than homing pigeons?
7. Maxim's bakery specially made a birthday cake, and each cake needed 0.32kg flour. Li Shifu got 4 kilograms of flour to make cakes. How many birthday cakes can he make at most?
8. Fruit farmers should pack 680 kilograms of grapes into cartons and transport them away. Each carton can hold 15 kg. How many cartons do they need?
9. A highway is 360 meters long, and two construction teams, Party A and Party B, simultaneously spread asphalt from both ends of the highway to the middle. The construction speed of Team A is 1.25 times that of Team B, and all roads are paved after 4 days. How many meters of asphalt do Team A and Team B pave every day?
10, parallelogram billboard, base12.5m, height 6.4m. If you want to decorate this billboard with oil, you need 0.6 kg of paint per square meter. How many kilograms of paint do you need?
1 1. A toy factory originally needed materials from 3.8 yuan to make a white rabbit. Later, the production method was changed, and only 3.6 yuan materials were needed for each photo. I was going to make 180 white rabbits. How many can I make now?
(4) 1080÷[ 180÷5÷6×(5+ 1)] :