To type a manuscript, it takes 4 hours for Party A to complete it alone, and 6 hours for Party B to complete it alone. The time ratio between Party A and Party B is (), and the work efficiency ratio is ()

To type a manuscript, it takes 4 hours for Party A to complete it alone, and 6 hours for Party B to complete it alone. The time ratio between Party A and Party B is (), and the work efficiency ratio is ()

To type a manuscript, it takes 4 hours for Party A to complete it alone, and 6 hours for Party B to complete it alone. The time ratio between Party A and Party B is (), and the work efficiency ratio is ()
The results are as follows
Completion time of a: completion time of B = = 4:6 = = 2:3
Because the work efficiency ratio of Party A and Party B is the inverse ratio of their work time ratio, we get: work efficiency of Party A: work efficiency of Party B = = 6:4 = = 3:2
So:
To type a manuscript, it takes 4 hours for Party A to finish it alone, and 6 hours for Party B to finish it alone. The time ratio of Party A and Party B is (2:3), and the work efficiency ratio is (3:2)

For a manuscript, a score of 40 points can be good, B score of 50 points can be good, the ratio of working hours between a and B is (), a is better than B
For a manuscript, a score of 40 points alone can be good, B score of 50 points alone can be good, the ratio of working hours between a and B is (), and the efficiency of a is () higher than that of B

4:5
（50-40）÷50x100%=20%

It takes 40 minutes for a manuscript to be typed alone, while it takes 50 minutes for a manuscript to be typed alone. What is the ratio of working time between a and B?

The working time ratio of a and B is 40:50 = 4:5, helping each other

For a manuscript, it takes 5 hours for a to finish typing and 4 hours for B to finish typing. The time ratio of a to B is (:), and the work efficiency ratio is (:)
I know the answer, but I don't quite understand. There's a question in the exam tomorrow!

Suppose the total amount of contributions is 1, the time of a: the time of B = 5:4;
The work efficiency of a is 1 / 5; the work efficiency of B is 1 / 4;
The work efficiency ratio is 1 / 5:1 / 4 = 4:5;