Xiao Xiao read a book. She read 20 pages a day. After 5 days, she still had 60% of the book left. How many pages is this book?
Assuming that this book has $n$pages and Xiaoxiao reads $20$pages a day, then she reads a total of $/frac{20/times 5}=50$pages. The rest of the books have a total of $n-50$pages, where $/frac{60}{n}$represents the proportion of the number of pages in the book. If the ratio is simplified to $\frac{60}{n}=\frac{n-50}{n}\times 100$, then $n=1200$. So this book is $1200$pages.
Xiao Dong read a book and read 24 pages a day. After 6 days, there were still 3/5 of the book that he had not read. How many pages was this book?
Assuming that the total number of pages in this book is X, then according to the information given in the title, the following equation can be written: Xiao Dong reads 24 pages a day, so he reads a total of $24/times 3 = 72$pages After 6 days, there are still 3/5 of the book left, so there are still $X <br><br><br> By equating the two equations in the system of equations, one could obtain: $$24 \times 3 = \frac{X}{5}$$ Solution: $$X = 72 \times 5 = 360$$ Therefore, the total number of pages in this book was 360.
Xiao Hong read a book with 95 pages for five days. Xiao Li read this book with 30 pages a day. On average, how many pages did Xiao Hong read less than Xiao Li every day?
Xiao Hong spent a total of five days reading this book and had read a total of 95 pages. Xiaoli read 30 pages a day for a total of 5 days, so Xiaoli read a total of 30 × 5 = 150 pages. Then how many pages does Xiao Hong read less than Xiao Li on average every day? The total number of pages that Xiao Hong read was 95. The total number of pages that she read every day was 95/5 = 19. The total number of pages Xiao Li read was 30 x 5 = 150 pages. The total number of pages she read every day was 30 pages. This was because Xiao Hong read 19 - 30 = -1 pages less than Xiao Li every day. Therefore, Xiao Hong read an average of 19 pages less than Xiao Li every day.
Xiao Ming read a book. He read 24 pages a day. After 3 days, he still hadn't read 9% of the book. How many pages did this book have?
Xiao Ming reads 24 pages a day and after 3 days, there are still 9/11 pages left. Remaining pages = book pages × 911/11 Substituting the number of pages in the book into the above formula: Remaining pages = 729 pages/11 Since Xiao Ming reads 24 pages a day, 24 × 3 = 72 pages of the remaining pages have already been read by Xiao Ming. Number of pages in the book-number of pages viewed = number of pages remaining That is: 729 pages- 72 = 720 pages Thus, the book had a total of 720 pages.
Xiao Hong read a book and read 15 pages a day. After two days, there was still 60% of the book that she had not read. How many pages was this book? Ask for detailed steps
Little Red read 15 pages a day and had read 60% of the book in two days. Therefore, there were still 60%/15 = 4 pages left. The remaining four pages were read by Little Red every day for the remaining six days. Therefore, if you read one page a day, you can finish the remaining four pages in four days. 4 × 1 = 4(pages) Therefore, this book had a total of four pages.
Xiao Ming read a book and read 15 pages a day. After reading for 4 days, he still had 2/5 of the book left. How many pages does this book have?
Xiao Ming read a total of $4/15 = 60$pages in 4 days. The remaining pages are $2/5$of the book, so the book has a total of $2/5/60 = 48$. Thus, the book had a total of 48 pages.
Xiao Hong had read a book. She read 24 pages a day. After five days, she still had 40% of the book left. How many pages was this book?
Little Red read 24 pages a day for 5 days, so how many pages did she read in total: 5 days x 24 pages/day = 120 pages The rest of the book takes up 40% of the whole book, so the remaining pages take up: 40% ÷ 100% = 04 The pages of the book were: 120 pages/04 = 300 pages So this book has 300 pages.
Xiao Hong read a book and read 15 pages a day. After four days, she still had three-fifths of the book left. How many pages was this book?
Let's say the book has $x$pages. Reading 15 pages a day, it would take Xiaohong $x$days to finish reading this book. The remaining pages were three-fifths of the book, which was $025x$. According to the question, it would take Xiaohong four days to finish reading this book. Therefore, we can write the equation: $$ x + 025x = 025 \times (x+4) $$ Solve this equation: $$ x = 30 $$ So this book has 30 pages.
Xiao Xiao read a science book on the first day and read 30 pages, which is two-fifths of the book. How many pages has Xiao Xiao not read yet?
Your question is a little unclear. Can you provide more context information? For example, what is the "book" that you are referring to and why did Xiaoxiao read it? This way, I can better help you answer your questions.
Xiao Ming reads a book 20 pages a day, after three days, he still has five-eighths of the book to read.
The number of pages in this book is 256. Xiaoming reads 20 pages a day, so he can read 24 pages a day. In three days, he could finish reading a book with 256 pages. Therefore, Xiao Ming read a total of 256 pages x 3 = 768 pages in three days. After reading these 768 pages, Little Ming still had 768 pages- 256 pages = 512 pages to read. Little Ming read 512 pages/ 20 pages = 26 days. Therefore, this book had a total of 256 + 512 = 768 pages.
Xiao Hua read a book and read 15 pages a day. After reading for 4 days, he still had 2/5 of the book left. How many pages of this storybook had he not read?
Assuming that this storybook had $x$pages, then the number of pages Little Light read every day was $15/div4 = 375$pages. Little Light had already read $4$for days, so the remaining pages were $x - 4/375 = x - 1125$. Because the number of pages Little Light reads every day is fixed, the number of pages can be expressed as: $$x - 4 \times 375 = 375 \times 4 - 1125$$ The above formula was simplified to: $$x = 48$$ Therefore, there were still $48 - 1125 = 3675 pages of this storybook that he had not read.