The number of pages in a storybook can be expressed as $x$, so the total number of pages is $x \times 3/5$. Since there were still 36 pages to read, the total number of pages in the storybook plus these 36 pages was $x/times 3/5 + 36$. And because the book had a total of $x$pages, the equation could be listed: $$x \times 3/5 + 36 = x$$ If you solve this equation, you get $x=300$. Therefore, the story book had a total of $300$pages.
Let's say this storybook has a total of $x$pages. Naughty had finished reading $5/7$of the total page count, which meant that he had $2/7$left. Therefore, Naughty still needed to read $40$to finish the total number of pages. According to the meaning of the question, mischievous still needs to look at $40$pages, so $x - 40$should be divided by $7$. Since $x$is the total number of pages,$x$should be greater than or equal to $40$. Therefore, we can write an equation: $$x \geq 40 + 40 \times 7 = 560$$ The solution to this equation is $x=567$. So this story book had a total of $567$pages.
Did Yuan Yuan read 2/3 of the total number of pages in the storybook in the first week? Did Yuanyuan read 4/5 of the total number of pages in the storybook in the second week?
Xiao Ming had already read two-fifths of a 150-page storybook, so he had already read 150 × 2/5 = 60 pages. Therefore, there were still 150 - 60 = 90 pages left in the storybook.
If a book has been read three-fifths of the way and there are 15 pages left, then the number of pages read is the number of pages not read: Number of pages seen/number of pages not seen = 3/5/4/5 = 3/4 Therefore, the number of pages that had been read was four-thirds of the number of pages that had not been read.
Let's assume that the total number of pages in this book is x. Naughty had already read 5/7 of the total number of pages, which meant that he had already read 3/5 of x pages. Therefore, he still had 2/5 of x pages to read. There are still 40 pages to read, so the total number of pages that Naughty still needs to read is: 2/5 of x + 40 To simplify it: x + 40 / 5 The general score was: x + 80 Since x is the total number of pages: x + 80 = x / 5 + 80 To simplify it: x = 400 Therefore, the book had a total of 400 pages.
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.
Xiao Ming had already read two-fifths of a 200-page storybook, which was 10 pages more. 200 pages × 2/5 + 10 pages = 40 pages The remaining pages were: 200 - 40 pages = 160 pages Therefore, Little Ming still had 160 pages left.
Li Lin had already read two-fifths of a 255-page storybook. 255/2/5 = 1225 pages Since the book had a total of 255 pages, the remaining pages were: 255 - 1225 = 1225 pages Therefore, Li Lin still had 1225 pages left.