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It's the fifth grade, I'm just, well, I took this unit.
1 Girls have x people, boys have 4 5 girls, boys have (x divided by 5 times 4), men and women have a total of (2x divided by 5 times 4) people.
2 There are 24 storybooks, 36 of ***, and 24/36 of *** storybooks (have you learned about it?). If you have learned it, it will become 3/2, and if you don't learn it, you will be exempted), *** is 36/24 of a storybook (2/3), a storybook is 12/24 less than *** (1/2) less than ***, *** 24/12 more than a storybook (about 2/1, equal to 2).
3 batches of oranges, the first time 1 4 of the total was transported, the second time the remaining 1 2, and (1/4) of the total remained
Column: (1-1 4)-1 2=1 4
If you have any questions, you can ask me again.
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Belch... Question 1 There are (4 5x) male and female (9 5x) male and female.
Question 2 Storybooks are *** 2 3 *** are storybooks 3 2 Storybooks are more than ***1 3 *** more than storybooks 1 2 Question 3 There are (3 8) of the total number left
In fact, the score is very simple...
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Uh, this is from elementary school?
x+18=45
A: There are 27 boys!
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It looks like this: (45-x) x=1 8 solution x=40
The number of more than 1 8 means that the number of more people accounts for 1 8 of the number of boys.
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Solution: x number of girls, 4x number of boys.
x+4x=95
1+4)x=95
5x=95x=19
4x=4x19
x=76Answer: 19 girls and 76 boys.
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The number of girls in a school is 4 5 of the number of boys, and if the number of boys is x, then there are 4 5x girls, and the number of students in the whole school is x+4 5x=9 5x.
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Let's say it's an elementary school question
If the number of females is x, then the number of males is 140%x
So 48 = 140%x + 100%x
x=20 So 20 women, how many boys still say?
Binary once is simpler--
Well, I'm selling my elementary school knowledge
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There are 28 boys and 20 girls.
Children, learn more and read more!
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Answer: 125, the specific algorithm: let the number of boys be x and the number of girls be y, then 4 5 times y x, that is: y x 5 4, that is, the number of girls is 125 of the number of boys. Thank you! Hope to adopt.
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