2. Literature books 1500. There are more science books than literature books. How many science books are there?
3. A large set of tables and chairs is 144 yuan, and the price of chairs is desks. How much are desks and chairs?
4. Two cars, A and B, leave from two places 270 kilometers apart at the same time and meet in three hours. The speed ratio of car A and car B is 5: 4. What is the speed of each car?
5. Basketball, volleyball and football are 60 each, of which basketball accounts for the total, and the ratio of volleyball to football is 3: 4. How many footballs are there?
1, a pile of goods, car A carried 24 tons, which is 4/5 of car B, and car B carried 2/3 of car C. How many tons did C train transport?
2, a pile of goods, a car away 24 tons, is 4/5 of the b car, c car is 2/3 of the b car. How many tons did C train transport?
3, a pile of goods, A car away 24 tons, B car is 3/4 of A car, B car is 2/3 of C car. How many tons did C train transport?
4, a pile of goods, a car away 24 tons, B car is 3/4 of A car, C car is 2/3 of B car. How many tons did C train transport?
A car traveled 3/4 of the distance from city A to city B in 3 hours at the speed of 80 kilometers per hour. How many kilometers are the two cities apart?
6. Build an expressway, which has been repaired but not repaired by 3/4. There are still 120 meters that have not been repaired. How long is this road?
7. build a highway, which has been built for 3/4. 120m has been completed. How long is this road?
8. Grain stores have 150 bags of rice, which are sold for 2/5 on the first day and 2/3 on the second day. How many bags are left?