Question: Xiao Hong borrowed a book. After reading it for five days, there were still 12 pages left. Xiao Hong had to return the book in three days. How many pages did she read on average every day?
Xiao Hong borrowed a book and read it for 5 days. There were still 12 pages left, so she had read a total of $5+12=17$pages. Little Red had to return the book in 3 days, so the number of pages she needed to return was $17+3=20$pages. We can calculate the average number of pages of the remaining pages per day using the following formula: $$ Remaining pages = total pages-number of pages already seen $$ Since Little Red had already read 17 pages, the remaining pages should be $17- 17> times 2=0$per day. Therefore, Little Red had to read an average of 0 pages a day.
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 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 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 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 Ming reads a book, and after 7 days, there is still 1/3 of the book left. In the next five days, he would read 60 pages in total. How many pages did Xiao Ming read on average every day?
After reading a book for 7 days, Xiao Ming still had 1/3 of the book left. This meant that he had read 1/3 of the book and the remaining 2/3 of the book needed to read 2/3 × 7 = 4/3 days. Reading a total of 60 pages in the next 5 days meant that Xiaoming had read (60/5) = 12 pages in these 5 days. Therefore, Xiaoming read an average of 12 pages a day.
A book had 372 pages. Xiao Hong finished reading it in six days, and Xiao Gang finished reading it in a week. How many pages did Xiao Gang read on average every day?
According to the information provided by the question, Little Red spent six days to finish reading 372 pages. The average number of pages she read per day was: 372/6 = 60 pages/day Therefore, Xiao Gang needed to multiply it by 15 days to get the average number of pages he read every day: 60 pages/day x 15 days = 90 pages/day Therefore, Xiao Gang read an average of 90 pages a day.
Xiao Ming and Xiao Hong were reading a 24-page book at the same time. Xiao Hong finished reading the book in 3 days. How many pages did she read per day on average?
Little Red saw that the number of pages in this book was 24 pages/day x 3 days = 72 pages. The total number of pages she had read was 72, and there were no more pages left. Therefore, Xiao Ming and Xiao Hong read a 24-page book at the same time. Xiao Hong finished the book in three days, and she read an average of 72 pages a day.
Xiao Hong read a book and read 15 pages a day. After 4 days, she read three-fifths of the book. How many pages does this book have?
Assuming that the book has a total of $x$pages, how many pages has Xiaohong read in 4 days? Based on the 15 pages she read every day, she read a total of $15,4 =$60 pages. Then she read three-fifths of the book, which means that she only read the $3/5 part of the book. Therefore, we can write the equation: $$60 = 3/5 \times x$$ To solve this equation, you can get $x = 60 times 5/3 = 100$. Therefore, the book had a total of 100 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.
If a cockroach reads 16 pages of a book every day, there will still be three-eighths of the book left after five days. How many pages are left?
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.