1. Party A and Party B have two baskets of apples. After taking 1 / 5 of them from basket a and giving them to basket B, the two baskets of apples are equal. At this time, basket B has 40 kg of apples. How many kg of the original apples in basket a? 2. A certain fishing boat catches 1200 kg in the morning, which is 1 / 7 less than that in the afternoon. How many kg are caught in the whole day? 3. There are two baskets of pears with a total weight of 45 kg. After eating 5 kg each, the weight of basket a is 3 / 4 of that of basket B. how many kg each of basket a and basket B? (calculate the result) 4. To produce a batch of electric fans, it takes 20 days for workshop a to do it alone, and 1 / 3 for workshop B to do it alone for 10 days. How many days can the two workshops cooperate to complete it? 5. The number of boys in class 6 (1) is 12 more than 2 / 5 of the whole class, and the number of girls accounts for 1 / 2 of the boys? 6. A road repair team builds a road, first repairs 1 / 4 of the whole field, and then repairs the remaining 1 / 4, at this time there is 6000 meters from the midpoint 7. The sum of the subtracted, the subtracted and the difference is 20. Given that the difference is 3 / 5 of the subtracted, what is the subtraction and what is the difference? (calculate the result) 8. For a project, team a will complete it in 40 days, and the efficiency of team a is 3 / 4 of that of team B. If Party A and Party B cooperate, how many days will it take to complete the project? 9. Party A and Party B transport one ton of coal in total. At the end of the transport, party a transport more than 7 / 12 of the total, and Party B transport 1 / 2 of the total? 10. Xiao Lin reads a book. He reads more than 1 / 5 of 10 pages of the whole book every day and finishes it in 4.5 days. How many pages in total? 11. The number of students in grade five is 42 more than 3 / 5 of that in grade six. The number of students in grade six is 50 more than that in grade five. How many students are there in grade six? 12. A wire is 2 / 3 meters long, which is the remaining 1 / 8. How long is it? Except for questions 3 and 7, other questions are only listed and not calculated

1. Party A and Party B have two baskets of apples. After taking 1 / 5 of them from basket a and giving them to basket B, the two baskets of apples are equal. At this time, basket B has 40 kg of apples. How many kg of the original apples in basket a? 2. A certain fishing boat catches 1200 kg in the morning, which is 1 / 7 less than that in the afternoon. How many kg are caught in the whole day? 3. There are two baskets of pears with a total weight of 45 kg. After eating 5 kg each, the weight of basket a is 3 / 4 of that of basket B. how many kg each of basket a and basket B? (calculate the result) 4. To produce a batch of electric fans, it takes 20 days for workshop a to do it alone, and 1 / 3 for workshop B to do it alone for 10 days. How many days can the two workshops cooperate to complete it? 5. The number of boys in class 6 (1) is 12 more than 2 / 5 of the whole class, and the number of girls accounts for 1 / 2 of the boys? 6. A road repair team builds a road, first repairs 1 / 4 of the whole field, and then repairs the remaining 1 / 4, at this time there is 6000 meters from the midpoint 7. The sum of the subtracted, the subtracted and the difference is 20. Given that the difference is 3 / 5 of the subtracted, what is the subtraction and what is the difference? (calculate the result) 8. For a project, team a will complete it in 40 days, and the efficiency of team a is 3 / 4 of that of team B. If Party A and Party B cooperate, how many days will it take to complete the project? 9. Party A and Party B transport one ton of coal in total. At the end of the transport, party a transport more than 7 / 12 of the total, and Party B transport 1 / 2 of the total? 10. Xiao Lin reads a book. He reads more than 1 / 5 of 10 pages of the whole book every day and finishes it in 4.5 days. How many pages in total? 11. The number of students in grade five is 42 more than 3 / 5 of that in grade six. The number of students in grade six is 50 more than that in grade five. How many students are there in grade six? 12. A wire is 2 / 3 meters long, which is the remaining 1 / 8. How long is it? Except for questions 3 and 7, other questions are only listed and not calculated

1.40÷(1-1/5)
2.1200+1200÷(1-1/7)
3. B: (45-5-5) / (1 + 3 / 4) + 5 = 25kg, a: 45-25 = 20kg
4.1÷(1/20+1/3÷10)
5.(12+12÷2)÷（1-2/5-2/5÷2）
6.6000÷［1/2-1/4-（1-1/4））×1/4］
7. Subtraction: (20 ／ 2) ／ (1 + 3 / 5) = 25 / 4; difference: 25 / 4 × 3 / 5 = 15 / 4
8.1÷（1/40+1/40÷3/4）
9.（12＋12×1/2）÷（（1-7/12-7/12×1/2）
10.10×4.5÷（1-1/5×4.5）
11.（42+50）÷（1-3/5）
12.2/3÷1/8＋2/3
The key of score application is to find the corresponding score rate of known quantity, and wish to summarize the method and solve more score application problems flexibly

The total weight of two barrels of oil is 72 kg. After using 25% of barrel a and 40% of barrel B, the weight of the remaining oil in the two barrels is exactly the same. How many kg does each barrel weigh?

Suppose the original weight of a barrel of oil is XKG, from the Title Meaning: (1-25%) x = (72-x) × (1-40%), & nbsp; & nbsp; & nbsp; & nbsp; 0.75x = 43.2-0.6x, & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 1.35x = 43.2, & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; X = 32; 72-32 = 40 (kg); answer: the original weight of a barrel of oil is 32kg, and that of B barrel oil is 40kg

There are two baskets of fruit, a and B. A weighs 25 kg. If you take 10 kg out of B and put it into a basket, the weight of B basket is 47 times that of a basket. How many kg of fruit did B basket have?

(25 + 10) × 47 + 10, = 35 × 47 + 10, = 20 + 10, = 30 (kg). A: there were 30 kg fruits in basket B