Xiaoli and Xiaowen produce Fuwa in a toy factory. Xiaoli produces M sets a day, and Xiaowen produces 2 sets more than Xiaoli. In September, Xiaoli insisted on working overtime for 30 days, while Xiaowen worked for 25 days Q: 1. How many sets of Fuwa did they produce in September? How many more sets did Xiaowen produce than Xiaoli in September?

Xiaoli and Xiaowen produce Fuwa in a toy factory. Xiaoli produces M sets a day, and Xiaowen produces 2 sets more than Xiaoli. In September, Xiaoli insisted on working overtime for 30 days, while Xiaowen worked for 25 days Q: 1. How many sets of Fuwa did they produce in September? How many more sets did Xiaowen produce than Xiaoli in September?

I hope it will be helpful for you to answer the questions by the mathematical Q & a group. & nbsp; 30m + 25 (M + 2) = 55m + 5025 (M + 2) & nbsp; - 30m = 50-5m1. In September, they produced 55m + 50 Fuwa sets in total. & nbsp; in September, Xiaowen produced more 50-5m Fuwa sets than Xiaoli. I wish you progress in your study*^__ ^*)

Xiaojun and Xiaoli originally had 60 stamps. After Xiaojun gave Xiaoli five, they had the same number of stamps. How many stamps did they have?

The total number of stamps for two is the same
After Xiaojun gave Xiaoli five, they had 60 / 2 = 30
After Xiaojun gave five, there were 30, then the original 30 + 5 = 35
After Xiao Li took five, there were 30, then the original 30-5 = 25
Checking: 35 + 25 = 60, that's right

After Xiaojun gave Xiaoli 20 stamps, the number of stamps of the two people was exactly the same. Originally, the number of stamps of Xiaojun was three times that of Xiaoli

1. Method 1, only one unknown number is set
Suppose the original number of Xiaojun stamps is: X, then after Xiaojun gives Xiaoli 20 stamps, there are still: x-20,
Xiaoli now has the same number of stamps as Xiaojun: x-20
So, before Xiaojun gave Xiaoli stamps, the number of Xiaoli's stamps was: (x-20) - 20 = x-40
The original number of Xiaojun stamps is three times that of Xiaoli, so there is: x = 3 (x-40)
Solution: x = 60, so Xiaojun has 60 stamps and Xiaoli has 20
2. The second method is to set two unknowns
Suppose Xiaojun has x stamps and Xiaoli has y stamps
So after Xiaojun gives Xiaoli 20 stamps, the number of Xiaoli's stamps is x-20
There are: x-20 = y + 20
Because: the original number of Xiaojun stamps is three times that of Xiaoli
There are: x = 3Y
From these two equations, x = 60, y = 20 are obtained