Xiao Ming was reading a storybook. The number of pages he read before dinner was one-fifth of the number of pages he had not read. After dinner, he read another six pages. At this time, the number of pages he had read was four of the number of pages he had not read…Xiao Ming read a storybook. The number of pages he read before dinner was one-fifth of the number of pages he did not read. After dinner, he read another six pages. At this time, the number of pages he read was four of the number of pages he did not read.
According to the story, Xiao Ming had already read a part of the storybook before dinner, which was one-fifth of the unread pages. Therefore, the number of pages he read before dinner was one-fifth of the total number of unread pages. After dinner, he read another 6 pages. The number of pages he had read was one-fourth of the total number of pages he had not read, which was one-fourth of the total number of pages he had not read.
Therefore, Xiaoming had read 11/10 of the storybook before and after dinner, which was also 11/10 of the unread pages. This ratio could be expressed as:
Number of pages not seen/number of pages seen = 11/10
The number of unread pages is the ratio of the total number of pages, the number of read pages is the number of unread pages.
Wang Xiao was reading a novel. Before dinner, the number of pages he had read was one-seventh of the number of pages he had not read. After dinner, he read another eight pages. At this time, the number of pages he had read was the number of pages he had not read...According to the plot of the novel, Wang Xiao had read about 70% of the novel before dinner, so he had read about 72% of the novel by the time he read eight pages after dinner. Since the ratio of the number of pages seen and the number of pages not seen was the same, Wang Xiao's number of pages not seen would increase by 8 pages, which was 16% of the content.
Therefore, the ratio of the number of pages Wang Xiao had read before dinner to the number of pages he had not read was 1/7. After dinner, it was 167, which was about 2667%.
Xiao Lan was reading a storybook. The number of pages she had read before dinner was 1/5 of the number of pages she had not read. After dinner, she had read another 6 pages, which was 1/4 of the number of pages she had read.Xiaolan read a story book. The number of pages she had read before dinner was 1/5 of the number of pages she had not read. After dinner, she had read 6 pages. This was 1/4 of the number of pages she had read. Then, what was the number of pages she had not read?
The number of unread pages is the number of pages in the entire story minus the number of read pages. Therefore, the number of pages that Xiaolan had read before dinner was 1/5 of the number of pages that she had not read.
Number of pages seen = number of pages not seen × 5/4
He also knew that Xiaolan had read six pages after dinner, so he said,"
Number of pages seen = Number of pages seen + 6 = (Number of pages not seen × 5/4) + 6 (Add 6 to both sides of the equation)
The equation was simplified to:
Number of pages viewed = 26 × 5/4 + 6
= 36 + 6
= 42
Therefore, Xiaolan had read page 42 before dinner, but she hadn't read page 42-36=6.
Dongdong read a book on the first day, the ratio of the number of pages he had read to the number of pages he had not read was 2 to 3. The next day, he read another 30 pages, and the number of pages he had not read was this oneThe total number of pages in the book was $30+30=60$pages.
The number of pages read is $2x$, and the number of unread pages is $3x$. where $x$is an integral number.
On the first day, the ratio of pages read to unread was $2:3, so $2x=3x+30. The solution is $x=10$.
Therefore, the number of pages read is $2x=20$, and the number of unread pages is $3x=30$.
So this novel has a total of $60$pages, I've read $20$pages, I haven't read $30$pages.
Xiaofang was reading a novel. The number of pages she had read before dinner was one-seventh of the number she had not read. After dinner, she read another eight pages. At this time,Xiaofang read the novel as follows:
Before dinner, Xiaofang had read less than one-seventh of the novel, which was about 16 pages. Therefore, she had read less than one-seventh of the novel before dinner.
After dinner, Xiaofang read another eight pages. At this time, she had read about 1/7 + 1/8 = 1/4 of the novel. Therefore, Xiaofang read another quarter of the novel after dinner.
To sum up, Xiaofang had read 16 pages before dinner and 1/4 pages after dinner, a total of 3/4 pages.