20,000 Miles Under the Sea is Qiqi's favorite extra-cursory book. He has read 85 pages, which is 17/30 of the total pages of the book. How many pages are there in this book?
This book had: n85/(17 × 30%) = 400 pages. Qiqi had already read 85 pages, which was 17% of the total number of pages. The remaining 400 pages accounted for 30%.
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?
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.
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.
A book had a total of 170 pages. He had already read 90 pages. How many pages were left?
There were 170 pages in a book. He had already read 90 pages, so there were still 80 pages left.
A book has 196 pages. How many pages are there in 21 such books?
Twenty-one such books would have about 3270 pages. This is because the total number of pages in each book will vary according to different authors, different publishing houses, different typography methods, and other factors, but there will usually be a certain average page range. And if a book has 196 pages, then 21 of these books will have about 3270/21 = 154 pages/book
When Xiaoming read a book, he would read 3/8 of the book on the first day and 18 pages on the second day. At this point, the number of pages read accounted for 3/5 of the total number of pages. How many pages are there in this book
Xiao Ming read 3/8 of the book on the first day, which was 042675 or 42675% of the book. The next day, he read 18 pages, and the remaining pages were 5/8 of the book, which was 075 or 75%. Suppose the book has x pages: 3/5 of the total number of pages read = (x * 3/8 + 18) / x = 3/5 To simplify it: x = 42 * 8 / 3 = 96 Therefore, the book had a total of 96 pages.
If you read 20% of the book on the first day, 25% of the total pages on the second day, and there are 110 pages left, how many pages are there in the book? stated
Let the total number of pages in this book be x pages. Reading 20% of the book on the first day meant reading 20% * x pages, which was 02x pages. The next day, he read 25% of the total number of pages, which meant that he read 25% * x pages, which was 025x pages. There were 110 pages left. According to the above calculation, the equation can be listed: 02x + 025x + 110 = x Solve this equation: 3x = 110 x = 33 Therefore, the total number of pages in this book was 33.
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?
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 comic book had a total of 19 pages. He had already read seven pages. How many pages were left?
This comic book had a total of 19 pages. He had already read 7 pages, so there were 19 - 7 = 12 pages left.
There are 347 pages in a book. How many pages do you need to arrange the pages of this book?
There are 347 pages in a book. How many pages do you need to arrange the pages of this book? If we want to arrange the pages of this book, we need to first determine the format and position of the page numbers. Usually, the page number would be placed in the upper left or upper right corner of the book to indicate the page number and page format. In this book, the first 2-3 pages should be numbered and the rest should be written in capital letters. Therefore, the page numbers of this book could be divided into the following sections: ``` Page:347 Page:347 ``` According to this format, we can calculate how many pages the book has: ``` 347 ÷ 2 - 3 = 175 ``` Therefore, this book had a total of 175 pages.
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.