2. A bus travels for 3 hours 174 km. At this speed, how many kilometers can 12 hour travel?
Grandpa Zhang bought three lambs and spent 75 yuan. He wants to buy five more lambs. How much will it cost?
4, 5 boxes of bees can brew 375 kilograms of honey a year. Kobayashi keeps 12 boxes of such bees. How many Jin of honey can he brew a year?
5. Yu Ying Primary School 180 Young Pioneers helped military families to do good deeds on "Love Day". These young pioneers are divided into five teams on average, and each team is divided into four groups. How many young pioneers are there in each group on average?
6. Uncle Liu took 700 yuan to buy fertilizer, bought 16 bags of fertilizer, and left 60 yuan. What's the price of each bag of fertilizer?
7. Eggs collected by Chunya Chicken Farm on Monday are packed in a box of 18kg. After 8 cases are packed, there is 16kg left. How many kilograms of eggs were collected on Monday?
8. Uncle Wang drove from the county seat to Wangzhuang to deliver fertilizer. It took six hours to walk 40 kilometers per hour when I went there, and only five hours when I came back. How many kilometers per hour did you average when you came back?
9. A tourist bus traveled in the plains and mountains for two hours and finally reached the top of the mountain. It is known that tourist buses travel 50 kilometers per hour in plain areas and 30 kilometers per hour in mountainous areas. How long will this trip take?
10, planting trees on both sides of the road, each side should plant 25 trees per kilometer, this road is 120 kilometers long, one * * *, how many trees should be planted?
1 1. The school is going to distribute exercise books to class 15, with 40 copies for each class14. How many exercise books should schools buy?
12, a tree seedling 16 yuan, buy 3 trees and get 1 tree. How much cheaper is it to buy three at a time?
13. shampoo per bottle 15 yuan. The mall launched a promotion campaign. Buy 4 bottles and get 1 bottle. Buy four bottles at a time. How much cheaper is each bottle?
14. A panda needs to eat 15 kg of feed a day. The zoo has prepared 24 bags of feed, each bag is 20kg. Is this enough for pandas to eat for 30 days?
15. It took six hours for the car to deliver from A to B, with a speed of 32 kilometers per hour. It only took four hours to get back. What is the speed of coming back?
16, Xiaoming climbed the mountain for 4 hours, traveling 3 kilometers per hour, and the downhill speed was accelerated, 6 kilometers per hour. How long did it take to go down the mountain?
17. The workshop originally planned to produce 15 machines per day, which can be completed in 24 days. Actually, 18 units can be produced in one day, and it can be completed in a few days.
18. The experimental primary school should buy a composition guidance book of 12 yuan for each of the third and fourth grade students. It is known that there are 145 students in grade three and 155 students in grade four. How much are the two grades?
19, with 370 people traveling and 30 people riding in each car. How many cars do you need to complete this trip?
20, there are 450 kilograms of rice, eat 60 kilograms a day, how many days can you eat at most?