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Team a and team B work together to build a 240 km long road. Team a works alone for 10 days, and a pair works alone for 15 days. How many days will the two teams work together? There are two solutions,
240 divided by (240 divided by 10 + 240 divided by 15) = 6 (days)
1 divided by (1 divided by 10 + 1 divided by 15) = 6 (days)
Team a and team B work together to build a 240 km road. It will take 10 days for team a to finish it alone, 15 days for team B to finish it alone, and how many days for team a and team B to finish it together?
Who will answer this question? I hope to get a reply today
If we regard this project as 1, then a will repair 1 / 10 every day, and B will repair 1 / 15 every day
The cooperation is 1 / (1 / 10 + 1 / 15) = 1 / (1 / 6) = 6 days
There are two engineering teams a and B, a total of 120 people, of which the number of team B is three times less than that of team a, four people. How many people are there in each team?
If the solution of the equation 4x-3m = 2 about X is x = m, then the value of M is?
4x-3m = 2
x=1/4（2+3m)
So 1 / 4 (2 + 3M) = M
The solution is m = 2
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