The number of track and field teams is 4 to 3. Now five people are transferred from the first team to the second team. The two teams have the same number. How many people are there in the first team

The number of track and field teams is 4 to 3. Now five people are transferred from the first team to the second team. The two teams have the same number. How many people are there in the first team

(5 + 5) × 4 / (4-3) = 40 (person)

The school has two sports teams. The number of the first team is 75% of that of the second team. If the number of the first team increases by 5, the number of the second team decreases by 5
The numbers of the two teams are exactly the same. How many people are there in each team?

If the second team has X members, then the first team has 75% X members
75%x+5=x-5
The solution is x = 40
∴75%×40=30
A: there were 30 people in the first team and 40 people in the second team

There are two construction teams. The first team has 150 people and the second team has 147 people. Due to work needs, the number of people in the first team is twice that of the second team. How many people should be transferred from the second team to the first team

If the number of people in the first team is twice that of the second team, the total number of people in the two teams is three times that of the second team
Total number of people
=150+147
=297
Number of second team members
=297/3
=99
Number of people to be transferred
=147-99
=48

The ratio of the first team to the second team is 5:2, and the ratio of the second team to the third team is 3:4. What is the ratio of the first team to the third team?

Because the number of the first team: the number of the second team = 5:2 = 15:6, the number of the second team: the number of the third team = 3:4 = 6:8, so the number of the first team: the number of the second team: the number of the third team = 15:6:8, then the number of the first team: the number of the third team = 15:8, a: the ratio of the number of the first team and the number of the third team is 15:8