In the workshop a and B, the ratio of the original number of workers is 2:3, and Party A transfers 70 workers. At this time, Party B is 4 / 9 of that of Party A, and how many workers are there?

In the workshop a and B, the ratio of the original number of workers is 2:3, and Party A transfers 70 workers. At this time, Party B is 4 / 9 of that of Party A, and how many workers are there?

Now B is 4 / 9 of a, is it 9 / 4? That should be 9 / 4
There is no change in the number of people
It turns out that a is 2 / 3 of B
Later, a is 1 / 4 of B = 4 / 9
So there are 70 people in B (2 / 3-4 / 9) = 315 people
A: 315 (2 / 3) = 210

The ratio of team a and team B is 8:5. If 30 people are transferred from team a to team B, the number of the two pairs will be equal. How many people are there in team B?

30 △ 1.5 = 20, 20 × 5 = 100