For a batch of parts, it takes 8 hours for Party A to process them alone, 7 hours for Party B, and one hour for Party A and Party B to cooperate. How many parts of this batch of parts are completed

For a batch of parts, it takes 8 hours for Party A to process them alone, 7 hours for Party B, and one hour for Party A and Party B to cooperate. How many parts of this batch of parts are completed

1/8+1/7=15/56

Processing a batch of parts, Party A alone to do 10 hours to complete, Party B alone to do 8 hours to complete, Party A and Party B cooperation for 1 hour, to complete ()

To process a batch of parts, Party A will finish it in 10 hours, Party B will finish it in 8 hours, and Party A will cooperate in 1 hour to complete (1 / 10 + 1 / 8 = 9 / 40) of the total workload

Two workers process a batch of parts. When completing the task, the ratio of the workload of Party A and Party B is 5:4. Party A processes 85 parts per day, and how many parts does Party B process per day?

5:4=85：x
X = 68
B 68 per day

It takes 10 hours to type a manuscript and 12 hours to type B. what is the efficiency ratio between a and B
Is it 6:5? If not, please tell me the solution and the answer

It's 6:5
The time ratio of Party A and Party B is 10:12 = 5:6
The work efficiency ratio is equal to the inverse ratio of time, so the work efficiency ratio is 6:5