2. Master Wang assembled the computer, and the work efficiency was 2% higher than before, so how much time was lost?
3. Master-apprentice cooperation, 8 days to complete a project. As we all know, the number of days a master needs to do this alone is equal to the number of days two disciples do together, and four times the number of days a master and a disciple do together is equal to the number of days a disciple completes alone. So how many days does a disciple have to do alone?
4. Print the manuscript. If it is printed by Party A alone, it will take 2/3 hours to complete. If it is printed by B alone, it will take 45 minutes to complete. How many hours can two people print?
For a project, Team A and Team B work together for 4 days, completing 2/3 of the project, while Team A works alone for 8 days. If Team B works alone, how many days will it take?
6. Party A and Party B can complete a project within 10 hour. If Party A works 5 hours and Party B works 7 hours, how many hours can Party B do alone?
7, a pool of water, a, b two pipes open at the same time, 5 hours to fill, b, c two pipes open at the same time, 4 hours to fill. Now, it takes 6 hours to open the B tube, and it needs both A and C tubes to be opened at the same time to fill it. B how many hours can a person make up?
8, a message, A input 4 hours to complete half, B input 2 hours to complete. How many hours does it take two people to finish the task together?
9. A canal will be completed by Party A alone within 40 days and by Party B alone within 60 days. The cooperation between Party A and Party B will take 30 days to complete because Party A has a few days off. How many days did Wen Jia rest?
10, one job, completed by the cooperation of Party A and Party B in 6 days; The cooperation between Party B and Party C will be completed within 10 days; Party A and Party C can cooperate for 3 days, and Party B can do 12 days. How many days can Party B do it alone?
1 1, a project will be completed in 10 days with the joint efforts of both parties. If Team A works for five days first and Team B works for eight days, then they can only complete the whole project, so as to improve the work efficiency of Team B?
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