Miss Wang and Miss Li bought the same book. Mr. Wang spent 256 yuan on eight books, while Mr. Li spent 192 yuan. How many more books did Mr Wang buy than Mr Li?
This farm tool factory originally planned to produce 400 farm tools every month. After technical innovation, the output in nine months exceeded the annual plan of 780 vehicles. How many pieces are produced on average every month now?
There are 50 baskets of apples, 2 baskets less than the number of pears. How many baskets of apples and pears are there?
5. A batch of cloth originally planned to make 1 0,800 sets of clothes. Because each set of cloth saved 0.2 m, 1 0,000 sets were made. How many meters does each piece of cloth use now?
6. Two workers, Party A and Party B, processed a batch of parts together and completed the task in 20 days. It is known that A makes three more pieces than B every day, and B takes five days off, so the number of parts completed by B is exactly half that of A. What is the total number of these parts?
7. A machine factory plans to complete 10800 machine tools in 30 days. Due to the improvement of technology, 65,438+080 more machines are manufactured every day than originally planned, so that the task can be completed a few days ahead of schedule.
8. There are two bags of rice, A and B. The weight of rice in bag A is 1.2 times that of bag B. If 5 kilograms is added to bag B, the two bags of rice will be the same. How many kilograms are there in two bags of rice
9. A barrel of oil weighs 45 kilograms. After pouring out half of it, there are 23 kilograms left in the barrel. If this oil is sold to 4.5 yuan per kilogram, how much can a barrel of oil sell?
10, wheat 60 kg per bag, rice 90 kg per bag. Today, * * * transports 280 bags of wheat and rice, only knowing that the total weight of wheat is 1800 kg. How many bags of wheat and rice do you want?
1 1. The chemical fertilizer plant plans to produce 7,200 tons of chemical fertilizer, which has been produced for four months, with an average monthly fertilizer 1200 tons, with 800 tons remaining each month. How many months will it take to complete the production?
12. The plastic factory plans to produce 1300 plastic modules and 780 plastic modules in 6 days. According to this calculation, how many days will it take to produce the rest?
13. Li Shifu produced 252 parts in four hours in the morning, and worked at this speed for three hours in the afternoon. How many parts does Li Shifu produce on this day?