Xiao Ming had read 80 pages of a science and technology book, and there were 31 pages left. The pages that he had read and the pages that he had not read each accounted for a fraction of the total pages of the book.
The total number of pages in this book is 101. Xiao Ming has read 80 pages and has not read the remaining 31 pages. Therefore, the number of pages that Xiao Ming has read accounts for the total number of pages:80 pages/101 pages =08(copies) The number of pages that have not been read accounts for the total number of pages:31 pages/101 pages =03(copies) Therefore, there were 08 copies and 03 copies for those that Xiao Ming had seen and those that he had not seen.
Xiao Ming had read 20 pages of a book on the first day, and there were still 30 pages left. The ones he had read and the ones he had not read each accounted for a fraction of the total pages of the book
The book had a total of 80 pages. Xiao Ming read 20 pages on the first day and did not read the remaining 30 pages. Therefore, the number of pages that Xiao Ming had read was 20/80=25% of the total number of pages. The number of pages that he did not read was 30/80=375%. Therefore, the total number of pages in the book was about 75% and 25% of the total number of pages that Xiao Ming had read and the number of pages that he had not 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 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.
A book had a total of 200 pages, and he had already read 120 pages. What percentage of the book had he read?
A book has a total of 200 pages, and 120 pages have been read. The percentage of the book can be calculated by calculating the ratio of the number of pages in the book to the number of pages that have been read. The total number of pages in the book is 200, and the number of pages that have been seen is 120. Therefore, the ratio of the number of pages that have been seen to the number of pages in the book can be calculated as: 120 ÷ 200 × 100% ≈ 625% Therefore, he had read about 625% of the book.
A book had a total of 90 pages. He had read three-fifths of it. How many pages were left?
A book of 90 pages, three-fifths read, then there was still: 90 - 3/5 * 90 = 90 - 36 = 54 pages. Therefore, there were still 54 pages left.
Ding had read 300 pages of a book, which was 27 pages less than the number of pages he had not read. How many pages were left?
Assuming that the book has a total of n pages, then the ones that Ding has not read are n-300 pages. According to the question, Ding read 300 pages more than he did not. n - (n-300) = 300 To simplify it: 2n - 300 = 300 2n = 300 + 300 2n = 600 n = 300 Therefore, the book had a total of 300 pages. Little Ding had already read 300 pages, but he hadn't read 300-300=0 pages. Hence, there were still 0 pages left.
A book had a total of 150 pages, and Xiao Ming had already read 80 pages. How many pages have you read? How many of them were left?
Xiao Ming had already read 80 pages, so the number of pages he had read accounted for 2/3 of the total number of pages. The remaining pages were 150 - 80 = 70 pages. Therefore, the remaining pages accounted for 1/3 of the total number of pages.
The book had a total of 170 pages, and he had already read 90 pages. (1) How many pages are left? (2) The remaining pages must be read within 4 days, on average, every day…
(1)There were still 80 pages left. (2)The remaining pages had to be read within four days, an average of 80 pages per day. This was equivalent to 80/170 = 05 days per page. Therefore, in the remaining 80 pages, you need to look at 80/05 = 16 days, 80/05 = 16 days, 80/05 = 16 days, and 80/05 = 24 days (rounded to two decimals). The final answer was that it took him 16 + 24 = 40 days to read the remaining 80 pages on the 16th and 24th days.
A storybook had 72 pages. He had clearly read two-ninths of the book. How many pages had he read? How many pages were left?
He had clearly read two-ninths of the book, which was page 18. Therefore, there were still 64 pages left in the book.
Xiao Ming read a novel. On the first day, he read 1/8 of the book and had 21 pages more. On the second day, he read 1/6 of the book and had 4 pages less, leaving 102 pages unread.
Xiao Ming read a novel on the first day and read 1/8 of the entire book with 21 pages more. On the second day, he read 1/6 of the entire book with 4 pages less, leaving 102 pages unread. We can use the following formula to calculate the remaining pages: Remaining pages = total pages-number of pages viewed Putting the known information into the formula, he obtained: Remaining pages = 102 pages Therefore, Xiao Ming read 1/6 of the book on the second day, leaving 102 pages.