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When someone reads a 252-page novel, the number of pages he has read is equivalent to 2 and 1/2 times the number of pages he has not read. How many pages has he read?

2024-09-10 18:08
1 answer
2024-09-10 20:15

Let the number of pages he has read be x and the number of pages he has not read be 252-x. According to the meaning of the question, the equation could be listed: x × 5/7 = (252 - x) × 2 × 1/2 To simplify it: 5x = 1260 - 7x 8x = 1260 x = 150 Therefore, he had already read 150 pages, and the number of pages he had not read was 252-150=102 pages. Therefore, he had read page 150 but not page 102.

Xiao Jin is reading a 72-page storybook. The number of pages he has read is two-sevenths of the number of pages he has not read. How many pages has Xiao Jun read?

1 answer
2024-09-16 13:18

When Xiao Jin read a 72-page storybook, the number of pages he had read was two-sevenths of the number of pages he had not read. Number of pages seen = number of pages not seen div7 = 1267 Therefore, Xiao Jun had already read a lot of pages, about 1267 pages.

Dongdong reads a book on the first day. The ratio of the number of pages he has read to the number of pages he has not read is two to three. The next day, he reads 30. At this time, the number of pages he has not read is this

1 answer
2024-09-25 16:56

Suppose the book has a total of $n$pages, the number of pages read is $m$, and the number of unread pages is $n-m$. According to the question, the ratio of the number of pages read to the number of pages unread is two to three, and the following equations can be listed: $$ \begin{cases} m = 2(n-m) \\ m + 30 = n \end{cases} $$ Transforming the second equation into $n = 4m + 30$and replacing it into the first equation gives $2m = 30$. The solution is $m = 15$. So the book has a total of $n=50$pages, the number of pages read is $m=20$, and the number of unread pages is $n-m=30$.

Uncle Li has read a novel. He has read 120 pages, which is 30 pages more than 3/4 of the number of pages he has not read. How much is left in this novel?

1 answer
2024-09-10 17:44

The novel has a total of 120 pages, of which the unread pages account for 3/4 of the pages of the book (1-3/4) * 120 = 30 Then the number of unread pages in the novel is 1/4 of the number of pages in the book 1/4 * 120 = 30 So the remaining pages of this novel are 120 - 30 = 90 Therefore, there were 90 pages left in the novel.

Xiao Ming reads 12 pages of the storybook every day. If he has read for a day, how many pages has he read? How many pages were left?

1 answer
2024-09-16 10:50

Xiao Ming had already read page 12a, and there were still pages 108- 12a left.😋I recommend a novel about transmigration and cultivation to you. It's called "The Mountain Man Has His Own Plan." This book had the elements of Xianxia and Cultivation. It told the story of the protagonist Fang Xin transmigrating to the game world, establishing a country in the game, awakening the inheritance, and growing stronger step by step. I hope you like this fairy's recommendation. Muah ~😗

Naughty reads a book with a total of 170 pages. He has already read 90 pages. How many pages does he read on average every day?

1 answer
2024-09-10 12:42

Naughty had read 90% of the 170 pages of the book, which meant that Naughty had read 90/19=5267 pages. The average number of pages to read in the remaining four days can be calculated by dividing the total number of pages by the number of days. 170 pages/4 days =45 pages/day. So, on average, Piao Jiao would read 45 pages a day.

A storybook has a total of 100 pages. The number of pages that have been read is four times the number of pages that have not been read. How many pages have been read? How many pages are left?

1 answer
2024-09-16 11:03

The storybook has a total of 100 pages. The number of pages that have been read is four times that of the number of pages that have not been read. The known number of pages seen = the number of pages seen + the number of pages left, which was 4 unseen pages = the number of pages seen + the number of pages left. Transferring the items would yield 5 pages remaining = 4 pages viewed, which meant that the remaining pages = 4 pages viewed divided by 5. Since the story book has a total of 100 pages, 4 pages viewed/5 = 8 pages remaining. Thus, there were still eight pages left.

Dongdong read a book on the first day, the ratio of the number of pages he had read to the number of pages he had not read was 2 to 3. The next day, he read another 30 pages, and the number of pages he had not read was this one

1 answer
2024-09-23 13:59

The total number of pages in the book was $30+30=60$pages. The number of pages read is $2x$, and the number of unread pages is $3x$. where $x$is an integral number. On the first day, the ratio of pages read to unread was $2:3, so $2x=3x+30. The solution is $x=10$. Therefore, the number of pages read is $2x=20$, and the number of unread pages is $3x=30$. So this novel has a total of $60$pages, I've read $20$pages, I haven't read $30$pages.

Wang Xiao was reading a novel. Before dinner, the number of pages he had read was one-seventh of the number of pages he had not read. After dinner, he read another eight pages. At this time, the number of pages he had read was the number of pages he had not read...

1 answer
2024-09-11 06:16

According to the plot of the novel, Wang Xiao had read about 70% of the novel before dinner, so he had read about 72% of the novel by the time he read eight pages after dinner. Since the ratio of the number of pages seen and the number of pages not seen was the same, Wang Xiao's number of pages not seen would increase by 8 pages, which was 16% of the content. Therefore, the ratio of the number of pages Wang Xiao had read before dinner to the number of pages he had not read was 1/7. After dinner, it was 167, which was about 2667%.

Xiao Ming is reading an extra-cursory book. This book has 150 pages. He has read three-fifths of the total pages. How many pages has he read and how many pages are left?

1 answer
2024-09-18 15:21

The total number of pages that Xiao Ming had read was 150. He had already read three-fifths of the total number of pages, which was 3/5 = 6%. Therefore, Xiao Ming had already read about 6% of the pages, and the remaining pages were 150 - 6%= 144 pages.

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