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Team a transfers 1 / 6 to team B. the number of the two teams is equal. It turns out that the ratio of team a to team B is 0
6=2+4
=1:2
There are 240 people in the two engineering teams. If the number is transferred from team a to team B, the ratio of team a and team B is 9:7. How many people are there in team a and team B?
If you transfer 1 / 4 from team a
After team a is transferred out, there are also:
240 ÷ (9 + 7) × 9 = 135 persons
A original:
135 ÷ (1-1 / 4) = 180 persons
B Original:
240-180 = 60
There are 240 workers in the two engineering teams. If 10 people are transferred from team a to team B, now the ratio of team a to team B is 9:7. How many people are there
emergency
A: 240 * 9 / (9 + 7) + 10 = 145
B: 240 * 7 / (9 + 7) - 10 = 95
There are 480 migrant workers in the two engineering teams. If one tenth of the number of migrant workers is transferred from team a to team B, then the number ratio of team a and team B is 9:7?
We can calculate the number after the exchange, and get 270 people from team a and 210 people from team B. then because we know that one tenth of the number is drawn from team a, the number of team a after the exchange is 9 out of 10, so team a has 300 people and team B has 180 people
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