Xiaowen had read two-fifths of the book, which meant that Xiaowen had read 170 pages divided by 2 = 85 pages. There were still 170 - 85 pages = 85 pages that he had not read.
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.
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.
Xiao Ming read two-fifths of the page on the first day. The next day, he read 15%, which was page 015. Therefore, the remaining pages were 200 - (2/5 + 015) = 200 - 045 = 19545 pages. Therefore, Little Ming still had 19545 pages left.
If a book has 200 pages and you've read 40% of it, then the remaining pages are: 200 pages × 04 = 80 pages Thus, there were still 80 pages left in the book.
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 Xiao Hong had already read 40 pages of a book, which was two-fifths of the book, then Xiao Hong had already read 20% or 0.2 times the book. How many pages are there in the book? You can divide the number of pages by the number of pages in the book: (100% - 02) / 100% = 90% Therefore, Little Red only had 10 pages left.
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.
This book was left: Two-fifths of the book is 18 pages, 2/5 = 9 pages (with two decimals) Therefore, there were still nine pages left in the book.