1. The processing of a batch of parts was originally planned to be completed in 15 days, but actually 30 pieces were made every day. Results It took only 10 days to complete the task. How many parts are there in this batch? 2. 14 kg of soybean is equal to 8 kg of peanut. Known 1 kg peanut ratio 1 kg soybean price 1.2 yuan. What is the unit price of soybeans and peanuts? 3. A rope is folded three times and then wound around the tree 10 cm. If it is 20 cm around the tree after 40% folding, find the circumference and rope length of the tree. 4. All the students in one class subscribed to two newspapers, 32 to math newspapers, 40 to composition newspapers and 26 to English newspapers. Q: How many people subscribe to both math newspapers and English newspapers? The distance between Wang Lin's home and school is 980 meters. One day, when Wang Lin went to school from home, she suddenly remembered that she had forgotten to bring a marker. She hurried home to get her marker and then went to school. How many roads did Wang Lin walk this time? 6. Wang Ming and Li Li ride bicycles from Shuofang to Wuxi at the same time. Three hours later, Wang Ming overtook Lili 12 km, and Wang Ming's average speed was 16 km. How many kilometers does Li Li run per hour on average? 7. Two cars, A and B, set off from a distance of 950 kilometers at the same time and met for 5 hours. A car speed 105 km, B car speed how many km? 8. On a bookshelf, there are three times as many books on the top floor as on the bottom floor. If you move 18 books from upstairs to downstairs, then the books on the two floors are equal. How many books are there on the upper and lower floors? 9. Dr. Li prescribed a prescription for a patient, one tablet of 0. 1 mg, 0.2 mg each time, three times a day, for one week. If a bottle of this medicine contains 50 tablets, is it enough to buy only one bottle now? 10. Laying water pipes with a length of 120m, using 3m and 5m pipes. Suppose you were a builder, how many 3m and 5m pipes would you use? 1 1. Travel agencies offer two preferential schemes for a one-day tour of a certain scenic spot: A: adult 160 yuan, 40 yuan for children; B: Each person in a group of more than 5 people 100 yuan. If there are six adults and three children traveling together, which scheme saves money? 12. There are two wires with the same length. The first one needs18m, and the second one needs 25m. The remaining wire is just twice as long as the second one. How many meters are left in the second one? 13. Shoe sizes sold in stores can be expressed in two ways: "cm" and "size". It is known that 19 cm is equivalent to 28 yards, and 13.5 cm is equivalent to 17 yards. So how many yards is 17.5 cm equivalent? How many centimeters is 36 yards equivalent? 14.6 boxes contain the same number of balls. If six balls are taken out of each box, the remaining balls in the six boxes are equivalent to the number of balls in the original two boxes. How many balls are there in each box? 15. A table has four legs and a commode has three legs. There are *** 100 existing tables and commodes, with a total of 340 legs. How many of these two commodities are there?

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