Naughty has read more than one-fifth of the total number of pages in a book. Twenty-four pages and the remaining two-thirds of the total number of pages. How many pages are there?
Let's assume that the total number of pages in this book is x. The number of pages that Naughty had already read was x +5 + 24, which was a total of x +5+24. The remaining pages make up two-thirds of the total number of pages, so there are: x÷5+24 + x/2 = x The above formula was simplified: x/2 + 24 = x After the reduction, it was obtained: x/2 = 24 Solution: x = 48 Therefore, the total number of pages in this book was 48.
Lanlan and Naughty, reading the same book. This book has a total of 90 pages. I've already read two-thirds of it. Naughty has read the same number of pages.
If Lan Lan and Naughty had read two-thirds of the book, then Naughty would have read 30 pages. The remaining pages were $90 - 30 = 60$pages. Therefore, Lan Lan still needed to read $60$pages. So they still needed to look at the $40$page and the $20$page.
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?
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.
There is a book with a total of 200 pages. How many times does the number 2 appear in these pages?
The frequency at which the number 2 appears on the page number of each book depends on the format and arrangement of the page number. In the common page format, the number 2 usually appears around 10% of the time, but it can also be higher or lower. For example, if the pages of a book are arranged in chapter order and each chapter contains the number 2, then the frequency of the number 2 appearing in each chapter is 10%. In addition, if the pages of a book are arranged in page order, and each page contains the number 2, then the number 2 appears on one of every ten pages. Therefore, to calculate the number of times the number 2 appears in a 200-page book, you need to first determine the format and arrangement of the page numbers and then calculate the number of times the number 2 appears in every chapter or every 10 pages. The specific calculation method could be completed using a statistics software or online tools.
Little Ding Ding reads a book with a total of 170 pages. The number of pages that have been read is 10 pages more than the remaining 3 times, so how many pages are left?
Assuming that the number of pages that Little Ding Ding had read was x, the remaining pages were 170-x. According to the conditions in the question, the number of pages seen is 10 pages more than the remaining pages. The following equation can be listed: x = (170 - x) + 10 To simplify it: 2x = 180 x = 90 Therefore, the number of pages that Little Ding Ding had read was 90, and the remaining pages were 170-90=80. Therefore, Little Ding Ding still had 80 pages left to read.
Xiao Hong read a novel. On the first day, she read 9 pages more than 1/12 of the total number of pages. On the second day, she read 7 pages less than 1/8 of the total number of pages, leaving 93 pages.
The total number of pages Little Red read on the first day was (12+9)/(12×1+9)= 13 pages. The total number of pages Xiao Hong read the next day was (13-7)/(8×1+7)= 9 pages. The number of pages Little Red read the next day was 7 pages less than the first day, and the remaining pages were 9 pages more than the first day. Therefore, the total number of pages she read the next day was 9/7 times that of the first day, which meant that she read 18 pages the next day. According to the total number of pages read on the first day and the total number of pages read on the second day, the total number of pages of the novel could be calculated as:13+9+18=40 pages. Therefore, the novel that Little Red was reading was the 40-Page Fictions.
A book with a total of 240 pages. Xiaolan has already read 2/3 of the total pages of the book. How many pages are left to read and write?
Xiaolan had already read 2/3 of the total number of pages in the book, so she had already read (2/3) × 240 = 80 pages. The remaining pages were 240 - 80 = 160 pages. Therefore, there were still 160 pages left to read.
Naughty is reading a storybook. He has read 5/7 of the total number of pages. There are still 40 pages left. How many pages does this book have? Trouble calculating!
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.
Little Red read a novel. On the first day, she read 1/12 of the total number of pages, which was 19 pages more. On the second day, she read 17 pages less than 1/8 of the total number of pages, leaving 93 pages left. This...
Xiao Hong read a novel on the first day, and she read 1/12 of the total number of pages, which was 19 pages more. On the second day, she read 17 pages less than 1/8 of the total number of pages, leaving 93 pages. If the total number of pages in this novel is X, then the number of pages that Little Red reads on the first day is X/12+19, the number of pages that she reads on the second day is X/8-17, and the remaining number of pages is X-93. According to the meaning of the question, the following equation can be listed: The number of pages Xiaohong read on the first day + the number of pages Xiaohong read on the second day = X/12+19+X/8-17 = X To simplify it: X = 962 Therefore, the total number of pages in this novel was 962. On the first day, Little Red read 962/12+19=86 pages. On the second day, she read 962/8-17=105 pages. The remaining pages were 962-93=871 pages. Little Red had read a total of 962+871=1733 pages, which was 93 pages less than the actual total number of pages. Therefore, Little Red had actually read 1733-93=1640 pages.
Little Red read a novel. On the first day, she read 1/12 of the total number of pages, which was 19 pages more. On the second day, she read 17 pages less than 1/8 of the total number of pages, leaving 93 pages left. This...
Xiao Hong read a novel on the first day, and she read 1/12 of the total number of pages, which was 19 pages more. On the second day, she read 17 pages less than 1/8 of the total number of pages, leaving 93 pages. On the first day, he read 1/12 of the total page count, which was 19 pages more. On the second day, he read (1-1/12)×19 = 11/12 pages. Since there were 93 pages left, he read 93/11/12 = 108 pages. The next day, if you read 17 pages less than 1/8 of the total number of pages, then you read (1-1/8)×17 = 7/8 pages the next day. Since there were 93 pages left, you read 93/7/8 = 160 pages the next day. Therefore, the total number of pages Little Red had read was 160+93=253.
There are 420 pages in a book. The number of pages that have been read is the remaining 3/4. How many pages are left?
Assuming that there were still x pages left, the number of pages that had been read would be 420 - x. According to the question, the number of pages that have been read is the remaining three-quarters, so the following equation can be written: 420 - x = 3/4 (420 - x) To simplify it: x = 396 Therefore, there were still 396 pages left.