Lingling finished reading a storybook in three days. On the first day, she read 25% of the book.
Ling Ling spent three days to finish reading a story book, and on the first day, she read 25% of the book.
Little Ming was reading a storybook. He planned to read 12 pages a day, but he actually read 8 pages a day. In the end, he finished reading it two days earlier. How many pages is this storybook?
Xiao Ming planned to read 12 pages a day, but he actually finished reading 8 pages a day two days earlier. Assuming that this storybook has x pages: - The plan is to read x/12 days, which is x/12 pages. - Actually, x/8 days is x/8 pages. Because Little Ming finished reading it two days earlier, he only needed to read x/8 - x/12 = x/4 days. Because Xiao Ming reads 8 pages a day, he needs to read x/4 days x 8 pages = x 4/5 pages. Therefore, we can get the following equation: x/4 - x/12 = x/5 By solving this equation, one could obtain: x/12 = x/5 + 1/2 x/12 = (x+10)/5 x/12 = x/5 + 1/6 x/6 = 1/6 x = 1 Therefore, this storybook had one page.
Judgement, a storybook is finished in ten days, and seven-tenths of the book is finished in seven days. Right?
Yes, reading a book in ten days meant reading seven-tenths of the book in ninety-seven days every day.
Lili finished reading a storybook in 8 days. She read 150 pages in the first 3 days. For the next 5 days, I read 42 pages a day. How many pages do I read on average every day?
Lili spent 8 days to finish reading a storybook. She read 150 pages in the first 3 days and 42 pages a day in the next 5 days. So she read a total of $150/times 3 + 42/times 5 = 2220$pages. And the total time she spent was $8$days, so she read an average of $2220 / 8 = 265$pages per day. So Lili read an average of 265 pages a day.
Lili read a storybook. She read 78 pages in the first 3 days and 40 pages a day in the next 4 days. how much of this book
Assuming the book has a total of n pages, Lili read 78 pages in the first 3 days, then there are still n - 3 × 78 = n - 262 pages not read. In the next four days, she read an average of 40 pages a day. In these four days, Lili read a total of 40 × 4 = 160 pages. Therefore, Lili had read a total of n - 262 + 160 = 322 pages, just enough to finish the book. So this book had 322 pages.
Reading a storybook every day, 40 pages a day. After 3 days, there is still 5/8 of the Golden Book left. How many pages is this book?
Assuming the book has $x$pages: - $40$on the first day. - The next day, he read $40/times 2 = 80$pages. - On the third day, if you read $3/8$on $40$pages, you would read $10$pages. Because there was still $5/8 left, there was: $$ 40 + 80 + 10 = \boxed{120} $$ So this book has 120 pages.
Zhang Ming was reading a storybook. He read 30 pages a day. After three days, there were still 8 pages of the book left. How many pages were there in this storybook?
Let's say this storybook has a total of $x$pages. According to the topic, 30 pages per day meant $30/div2 = 15$per hour. Zhang Ming read $15$pages per hour in $3$days so he read $3/30 = 90$pages in total. The remaining pages are $8/5 of the book, so there are: $$ 90 - \frac{8}{5} = \frac{16}{5} $$ Because the question requires the number of pages in the book, you need to multiply this result by $x$pages to get: $$ x \times \frac{16}{5} = \frac{16}{5} \times x = 96 $$ Solve this equation to get $x = 56$. So this story book had a total of $56$pages.
Xiaoting finished reading a storybook in three days. On the first and second days, she read seven-tenths of the total pages. On the second and third days, she read
Xiaoting finished reading a storybook in three days. On the first and second day, she read 70% of the total number of pages, and on the second and third day, she read 30% of the total.
Little Light read a storybook and read 60 pages a day. After three days, he still had 5/8 of the book left. How many pages was this storybook?
Let's say this storybook has a total of $x$pages. Reading $60$pages a day, the number of pages Little Light read in $3$days was: $$60\times3=180$$ The remaining pages are 5/8 of the book, so the following equation can be written: $$x\div5=8\times60\times3$$ Solve this equation: $$x=2400$$ So this storybook had a total of $2400 pages.
Ling Ling read a book. On the first day, she read one-fourth of the book. On the second day, she read three-sevenths of the book. On the second day, she finished reading the book in three days.
Ling Ling read a book on the first day, a quarter of the book, the next day, three-sevenths of the book, and the next day: The next day, Ling Ling spent about four-sevenths of the time reading the book. In other words, she had read 4/7 of the book and still had 3/7 left. Since she only had three days, she needed to finish the book as soon as possible. Therefore, she decided to read 7/8 of the book on the second day, which was the remaining 1/8. Therefore, Ling Ling spent about 1/8 of her time reading the book the next day, leaving 7/8 - 1/8 = 6/8. She could continue reading until she finished reading in the remaining 1/8 of the time.
7. For a storybook, you read an average of 15 pages a day. After reading for 12 days, you have finished more than the rest. How many pages are left?
Assuming that the storybook has x pages, then the number of pages read is x(15+12), and the remaining pages are x-(x(15 + 12)) = x-x(15 + 12) = x-3x (15 + 12) = -2x (15 +12) =-240. Therefore, there were still-240 pages left in the storybook.