For a project, if Party A works for three days and Party B works for five days, half of it can be completed; if Party A works for five days and Party B works for three days, one third of it can be completed A project can be completed in three days for Party A and five days for Party B, and one third in five days for Party A and three days for Party B. how many days will it take for Party A and Party B to cooperate

For a project, if Party A works for three days and Party B works for five days, half of it can be completed; if Party A works for five days and Party B works for three days, one third of it can be completed A project can be completed in three days for Party A and five days for Party B, and one third in five days for Party A and three days for Party B. how many days will it take for Party A and Party B to cooperate


Because a dry 3 days, B dry 5 days can complete half, then a dry 6 days, B dry 10 days can complete the whole project, because a dry 5 days, B dry 3 days can complete one-third, then a dry 15 days, B dry 9 days can complete the whole project, that B dry 1 day is equal to a dry 9 days, B dry 5 days is equivalent to a dry 45 days



For a project, if Party A works for three days, Party B works for five days, and Party A works for five days, Party B works for three days. How many days does it take for Party A and Party B to work alone?


The efficiency of Party A and Party B: (1 / 2 + 1 / 3) / (3 + 5) = 5 / 48
A alone: (5-3) / (1 / 3-5 / 48 × 3) = 96 days
B: 1 ÷ (5 / 48-1 / 96) = 32 / 3 days



If a project is completed in 8 hours, the efficiency of B is 80% of that of A. if two people cooperate for a few hours, the efficiency of B is half of that of A


If two people cooperate for X hours, half of the project can be completed
(1/8+1/8*80%)X=1/2
X = 20 / 9 (hours)



A project can be completed in 8 hours by Party A alone, and the work efficiency of Party B is 80% of that of Party A. how many hours can two people cooperate to complete 2 / 1 of the project?
Be clear···


Because the project can be completed in 8 hours by Party A alone, and the work efficiency of Party B is 80% of that of Party A, so Party B can complete 1 / 2 divided by (1 / 8 + 1 / 10) = 2, so it can be completed in 2 hours



A project can be completed in 8 hours by Party A alone. The work efficiency of Party A is 80% of that of Party A. how many hours can two people cooperate to complete the project
Come on. I have an urgent need. I have to finish it in ten minutes


A efficiency = 1 / 8
B efficiency = (1 / 8) * 80% = 1 / 10
A + B efficiency = 1 / 8 + 1 / 10 = 9 / 40
(1/2)/(9/40)=20/9
One half of the project can be completed in 20 hours



For a project, team a will complete it in 12 days alone, and team B's work efficiency is 80% of team a's. how many days can team B complete it alone
emergency


1/12 x 80%= 1/15
1÷ 1/15=15



The difference between a and B is 80. One half of a is equal to three-thirds of B. what is a and B?


If a + B = 80, a 1 / 2 = B 3 / 2, a = B 6 / 2 = B 3 / 2
80 = 4 B
B = 20, a = 80-20 = 60



The difference between a and B is 80. One half of a is equal to three half of B. what is a and B?


Let a and B be XY respectively
x-y=80
x/2=2y/3
Solution
x=320
y=240



The construction site needs to transport 48 tons of cement. Team a transported 3 / 8 of the total amount, while team B transported 4 tons more than team a's 2 / 3. How many tons did team a and team B transport respectively?


A = 48 × 3 / 8 = 18 tons
B = 18 × 2 / 3 + 4 = 16 tons



A and B trucks set out from a certain place at the same time to transport a batch of goods to the farm 165 kilometers away. Car a arrived 0.8 hours earlier than car B. when car a arrived, car B was still 24 kilometers away from the farm, and car a spent the whole journey______ Hours


24 △ 0.8 = 30 (km); 165 △ 30-0.8 = 5.5-0.8, = 4.7 (H); so the answer is: 4.7