![](data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 72 71" width="72"></svg>)
Divide a batch of parts equally to Party A and Party B for processing at the same time. They work for 5 days and complete 23% of this batch of parts. It is known that the efficiency ratio of Party A and Party B is 5:3. How many days will it take for Party B to complete the assigned task?
Let B's work efficiency be x, then a's work efficiency is 53x, then: 5x + 5 × 53x = 23 & nbsp; 5x + 253x = 23 & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; X = 120 (12-23 × 33 + 5) △ 120 = 14 △ 120 = 5 (days) a: it will take 5 days for B to complete the assigned task
In a batch of projects, Party A and Party B are allowed to work at the same time. Two people work for 5 days to complete 2 / 3 of the batch of projects. It is known that the efficiency of Party A and Party B is 5:3. How much time does party a need
It will take two people to finish the project at the same time
5 divided by 2 / 3 = 7.5 days
What time does a need
7.5 times 3 / 5 = 4.5 days
For a project, Party A and Party B work together for 20 days. It is known that the work efficiency ratio of Party A and Party B is 4:5. How many days do Party A and Party B work alone?
Use the formula!
The total amount of "a effect" 4 "and" B effect "5" is "180"
180/4=45（days）
180/5=36（days）
The work efficiency ratio of Party A and Party B is 3:4. After 6 days of cooperation, Party A will work for 10 days. How many days will it take for Party A and Party B to complete the whole project separately?
The total amount of work is 1
Design efficiency x
So the efficiency of B is 4 / 3x
therefore
（x+4/3x）*6+10x=1
x=1/24
So it takes 24 days for a to do it alone
It takes 24 / 4 * 3 = 18 days for B to do it alone
RELATED INFORMATIONS
- 1. The length of the railway from Shanghai to Tianjin is 1320 km. A and B trains leave from the two places at the same time. After six hours, the two trains meet. A train runs every hour on average 85km. How many kilometers does car B drive per hour? It is solved by equation.
- 2. A and B trains leave from two stations at the same time and meet each other in 18 hours. If a train takes 45 hours to travel between the two stations, B train needs to travel less distance between the two stations
- 3. The distance between the two places is 260 km. The two vehicles leave each other and meet each other in 3.5 hours. The speed ratio of the two vehicles is 2:3, and the speed of the two vehicles is calculated Fast~~~~~~
- 4. A. The distance between B and a is 320 km. A and B cars leave a and B at the same time. They run in opposite directions and meet in two hours. It is known that the speed of a car is 7 / 9 of that of B car Formula, not equation
- 5. The speed ratio of a and B is 7:9, and a runs 72km less than B when they meet, How many kilometers per hour do a and B cars travel?
- 6. (A and B start from ab at the same time and run in opposite directions. They meet in 6 hours. It is known that the speed ratio of a and B is 9:7, and B runs 72 km less than a when they meet How many kilometers are the two places apart?
- 7. Two cars leave from two places 360 kilometers apart at the same time. They meet three hours later. It is known that the speed ratio of the two cars is 7:5. How many kilometers does the fast car travel per hour No equations!
- 8. A. B is 546km away from the two places. The two buses start from the two places at the same time and meet each other in three hours. The speed of car a is three times that of car B, and car a runs every hour
- 9. The speed ratio of car a and car B is 5:8. The two cars start from a and B at the same time and meet at 24 kilometers away from the midpoint. How many kilometers are there between the two places? [hint: when a and B meet, the distance ratio and speed ratio are the same]. When the driving time is the same, the distance ratio remains unchanged, and the speed ratio is the same
- 10. The speed of the car and motorcycle is 5:4. The two cars leave from a and B at the same time. They meet at 24 kilometers from the midpoint. How many kilometers are there between a and B?
- 11. Car a and car B transported a batch of coal. Car a transported 30% of the coal first, and the rest was distributed to car a and car B according to 2:5. At the end of the ceremony, car B transported 30 tons of coal I know the answer is 60, what is the process, and why
- 12. Divide a batch of parts equally to Party A and Party B for processing at the same time. They work for 5 days and complete 23% of this batch of parts. It is known that the efficiency ratio of Party A and Party B is 5:3. How many days will it take for Party B to complete the assigned task?
- 13. Car a and car B travel from the same place in opposite directions. Car a travels 68 kilometers per hour and car B 72 kilometers per hour. Car a starts to leave one hour before car B starts to leave. After 2.5 hours, how many kilometers is the distance between car a and car B?
- 14. A and B vehicles with the same load carry 392 tons of goods at the same time. A vehicle transports goods every 8 hours, B vehicle transports goods every 6 hours. How many tons of goods each vehicle transports solve equations
- 15. Party A and Party B transport goods by two vehicles. Party A transports goods five times and Party B transports goods eight times. Party A transports 4 pieces more each time than Party B, and Party A transports 13 pieces less than Party B at the end. How many pieces does Party B transport each time?
- 16. A batch of goods was sent to Party A and Party B according to the ratio of 5:3. Party a finished four fifths of the team, and the rest was sent to Party B. Party B transported 48 tons in total. How many tons are there in total?
- 17. A batch of goods was sent to Party A and Party B by 5:3. Party a transported 48 tons and completed four fifths of the task. The rest was completed by Party B. how many tons did Party B transport
- 18. The distance between port a and port B is 120 km. Ship a sails 60 km per hour from port a to port B. after 30 minutes, please thank you Ship B sails from port B to port a, traveling 70 kilometers per hour. How many hours after the departure of ship a, the two ships meet?
- 19. The distance between port a and port B is 1200 km. Ship a sails from port a to port B at 60 km per hour. 30 minutes after the departure of ship a, ship B sails from port B to port a at 70 km per hour. How many hours after the departure of ship B?
- 20. The cargo carrying capacity of vessel a is 25% more than that of vessel B. the total cargo carrying capacity of vessel a and B is 3600 tons?