Xiaowen read a book. In the first week, she read a quarter of the book. In the second week, she read a fifth of the book. There were 165 pages left.
In the first week, Xiaowen had read a quarter of the book, which meant that she had read 1/4 of the book. In the second week, Xiaowen had read one-fifth of the book, which meant that she had read 1/5 of the book. The ratio of the remaining books was $1-1/4-1/5=16/20$. Because Xiaowen hadn't finished reading the entire book, she needed to look at the ratio of $16/20$, which was $8/20$. If the book has a total of $x$pages, then $x=16/20*165$. The solution is $x=2400$. So the book had a total of $2400 pages.
Yueyue read a book. In the first week, she read 1/4 of the book. In the second week, she read the remaining 1/5. There were 120 pages left.
This storybook had a total of $120/div1/4 = 300$pages.
Xiao Hong read a book. In the first week, she read 30%. In the second week, she read 55 pages. At this time, the ratio of the number of pages read to the total number of pages was 2:3.
Xiao Hong read 30% in the first week and 55 pages in the second week. The ratio of the number of pages read to the total number of pages is 2:3. We can set the total number of pages of this book as x pages. According to the question, Xiao Hong had already read 30% of the first week, which was 03x pages. In the second week, she had read 55 pages, so she had already read 03x + 55 pages. The ratio of the number of pages seen to the total number of pages is 2:3, so there is: 03x + 55 = 2/3x Solve the equation: 13x + 55 = 2/3x 13x - 2/3x = 55 01x = 55 x = 550 Therefore, the total number of pages in this book was 550.
Little Light read 3/8 of the book in the first week, and the remaining 1/5 in the second week. There were 34 pages left. He did not look at how many pages the book had.
Let's say the book has $x$pages. Little Light read $3/8$pages of the book in the first week, so he read $3/8 times x$pages. The remaining pages are $x - 3/8 <em> times x = 5/8 <em> times x$pages. The next week, he read the remaining $1/5$pages, so he read $1/5 times 5/8 times x$pages. According to the question, Little Light had read a total of $3/8'times x + 1/5'times 5/8'times x = 17/40 'times x$pages. Since Little Light did not read the book, the remaining pages were $34$. Therefore,$x - 17/40 So the book had a total of $960$pages.
Xiao Hong read a book. On the first day, she read one-fifth of the total number of pages. On the second day, she read another 30 pages. There were still 42 pages left. How many pages were there in this book?
On the first day, Little Red had read one-fifth of the total number of pages, which was one-fifth of the page. The next day, he read another 30 pages, so the remaining pages were the total number of pages minus 30 pages: 42 - 30 = 2 pages Therefore, the total number of pages in this book was five.
Xiao Hong read a storybook. On the first day, she read 30 pages, which happened to be a quarter of the book. On the second day, she read a third of the book.
The next day, Little Red finished reading 30 pages of the book. The remaining pages were 1-1/4=3/4 pages of the book. On the first day, Little Red finished reading 1/4 of the book. The remaining pages were 3/4-1/4=1/4 pages. The next day, Little Red finished reading 1/4 of the book. The remaining pages were 1/4-3/4=1/4 pages. Therefore, Little Red finished reading 1/4+1/4=1 page of the book in two days.
Congcong read a book called Encyclopedia for Children. He read 3/8 of the book in a week. There are 250 pages left. How many pages is there in this book?
The book had a total of 250 pages. Cong Cong read 3/8 of the book in a week, which was 250 pages, 3/8 = 666 pages. However, because Congcong had only read a part of it, he needed to add the remaining 250 pages. Therefore, the total number of pages in this book was 666 + 250 = 916.
Xiao Hong had read a book. In the first week, she had read 30% of the entire book, which was more than eight pages. At this time, there were still 76 pages that she had not read. How many pages was this book?
In the first week, Xiao Hong read 30% of the entire book, which was more than 8 pages. In other words, Xiao Hong read 8 + 30% + 8 = 13 pages. The remaining pages are 76, so the number of pages in the book is: 76 ÷ (1 - 30% - 8) = 76 ÷ 07 = 110 So this book has 110 pages.
Xiao Hong read a book. On the first day, she read 25% of the total pages of the book. On the second day, she read two-fifths of the total pages of the book. There were still 35 nights left.
On the first day, Xiao Hong read 25% of the total number of pages in the book, which was 1/4. The next day, Xiao Hong read half of the book's pages, which was 1/8. The remaining pages were 35% of the total number of pages in the book, which was 1/4 * 35% = 75%. Thus, the book had a total of 160 pages.
Xiaofang read a story book. On the first day, she read 51 pages of the book, and on the second day, she read 10 pages. The ratio of the number of pages she had read to the number of pages she had not read was 2:3.
On the first day, Xiaofang read the book's 51 pages, and the remaining pages were $51/div2 = 25$. The next day, he read another 10 pages and the remaining pages were $25 + 10 =$35. At this point, the ratio of pages seen to pages not seen is 2:3, which can be expressed as $25:35=2:3$. Therefore, Xiaofang had read the book for $2+3=5$days and still had $35-5=28$pages left.
Su Qian read a novel. In the first week, he read 20% of the total pages of the novel. In the second week, he read 30% of the remaining pages. At this time, there were 140 pages left.
According to the 20% of the total number of pages Su Qian read in the first week, the ratio of the total number of pages he read in the first week was: 20% ÷ 100% = 02 Therefore, Su Qian read 0.2 of the total number of pages in the first week, which was 20%. Next, based on the 30% of the remaining pages that Su Qian read in the second week, the ratio of the total number of pages that he read in the second week was calculated as: 30% ÷ 100% = 03 Therefore, Su Qian read 0.3 of the total number of pages in the second week, which was 30%. Then, the total number of pages left in the novel was: 140 + 02 = 880 Therefore, there were 880 pages left in the novel.