Assuming that the book has $x$pages, the number of pages that Xiaoming reads on the fourth day is $x$multiplied by $1/13$.
Because Xiao Ming had read for 4 days, the number of pages he read plus the remaining pages equals the total number of pages:
$$
x + (x \times 1/13) + 90 = x
$$
To simplify it:
$$
x \times 12 - x \times 1/13 + 90 = 0
$$
Solve this equation:
$$
x = 130
$$
Therefore, the book had a total of 130 pages.
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.
Let's say the book has $x$pages.
Xiao Gang reads $56$pages a day, so the number of pages needed to finish the book in four days is $56/times 4 = 216$pages.
The remaining pages are $3/11$of the book, which means that the remaining pages are $216/div3/11 = 80$pages.
Because Xiao Gang still needed to read for four days, the total number of pages he needed to read was $80 + 4 = 84$pages.
Therefore, the book has a total of $x = 84$pages.
If Mr. Lu Xun read every book carefully, he would be able to understand the meaning and extension of each book more deeply, thus expanding his knowledge and reading level.
But reading a book is very time-consuming and energy-consuming. Mr. Lu Xun is old and in poor health. If he really read every book he has read, then his reading time and reading volume will be very large.
Besides, reading was also a kind of experience and enjoyment, not just understanding and mastering the content. Therefore, even if Mr. Lu Xun read every book carefully, his reading experience and pleasure would be limited.
It can improve your imagination. Stories take you to different worlds and situations, which helps stimulate your creativity. Also, your understanding of different cultures and perspectives will grow. Different stories often come from various cultural backgrounds and can give you insights into how others think and live.
If Little Light started reading 80 pages a day from January 5th, he would need to finish 1/8 of the novel on the 10th day. Therefore, Little Light needed to finish reading the novel on January 12th.
If Little Light read 90 pages a day, he would need 16 days to finish 1/8 of the novel, which was 120 pages. Therefore, Little Light needed to finish reading the novel on January 16th.
The way the novel was folded did not guarantee the effectiveness of the memory because folding the corner would interfere with the magnetic attraction of the book, making it difficult to remember the position of the last time when reading again.
However, there are some ways to help you better remember the plot of the novel, such as:
1. Take notes: While reading a novel, you can take notes of the plot, characters, and key events that interest you. This will help you review and summarize the novel later.
2. Bookmark: When reading a novel, you can add a bookmark between chapters so that you can quickly access the parts you are interested in when you need to.
3. Read it many times: Reading a novel many times can help you remember the plot and details better. On the first reading, you can skimming through the novel and on the second reading, you can focus on the details and plot.
4. Make a reading plan: Making a reading plan can help you better manage your reading time and ensure that you have enough time to read novels.
Bending the corner is not the best way to memorize because it will interfere with your reading experience. However, taking notes, bookmarking, reading multiple times, and making a reading plan can help you better remember the plot and details of the novel.
Let's say the book has x pages.
Cockroach read 16 pages a day for five days, and three-eighths of the book was left to write equations:
x * 3/8 = 5(16+x)
To simplify it:
x = 48
So this book has 48 pages.
Cockroach watched for a total of five days, so he still had:
48 * 3/8 = 27 pages
Therefore, there were still 27 pages left in the book.
Let's say the book has $x$pages.
Reading 15 pages a day meant that you could read $4/times 15 = 60$pages in 4 days.
The rest of the content that he did not read was four-fifths of the book, which was $x/div4 = 5x/4$.
Solve the equation to get $x = 40$.
So this book has 40 pages.
Xiao Ming read a story book and read a total of 38 pages in the first two days and 54 pages in the next three days. We can use the total number of pages to deduct the number of pages in the first two days and the next three days to get the average number of pages that Xiaoming reads every day.
Total pages = 38 + 54 = 82
In the previous two days, he had read 38 pages, so the ratio of the number of pages read in the previous two days to the total number of pages was 38 pages/ 82 pages = 047875, which could be approximately expressed as 047875.
In the next three days, a total of 54 pages were read. The ratio of the number of pages read in the next three days to the total number of pages was 54 pages/ 82 pages = 06667, which could be approximately expressed as 06667.
Therefore, on average, Xiaoming reads 047875 × 2 + 06667 × 3 = 016533 × 2 + 023333 × 3 = 039167 × 2 + 050938 × 3 = 089715 × 2 + 010785 × 3 = 1575 × 2 + 0192 × 3 = 27533 every day, which is about 275.
Therefore, Xiao Ming read an average of 275 pages a day.