Xiaowen read a book. In the first week, she read a quarter of the book. In the second week, she read a fifth of the book. There were 165 pages left.

2024-09-18 15:36

Xiaowen read a book. In the first week, she had read a quarter of the book. In the second week, she had read a fifth of the book. There were 165 pages left. How many pages were there in this book? (Ask for the process)

1 answer

2024-09-18 19:48

In the first week, Xiaowen had read a quarter of the book, which meant that she had read 1/4 of the book. In the second week, Xiaowen had read one-fifth of the book, which meant that she had read 1/5 of the book. The ratio of the remaining books was $1-1/4-1/5=16/20$. Because Xiaowen hadn't finished reading the entire book, she needed to look at the ratio of $16/20$, which was $8/20$. If the book has a total of $x$pages, then $x=16/20*165$. The solution is $x=2400$. So the book had a total of $2400 pages.

Yueyue read a book. In the first week, she read 1/4 of the book. In the second week, she read the remaining 1/5. There were 120 pages left.

1 answer

2024-09-18 15:28

This storybook had a total of $120/div1/4 = 300$pages.

Xiao Hong read a book. In the first week, she read 30%. In the second week, she read 55 pages. At this time, the ratio of the number of pages read to the total number of pages was 2:3.

1 answer

2024-09-25 16:58

Xiao Hong read 30% in the first week and 55 pages in the second week. The ratio of the number of pages read to the total number of pages is 2:3. We can set the total number of pages of this book as x pages. According to the question, Xiao Hong had already read 30% of the first week, which was 03x pages. In the second week, she had read 55 pages, so she had already read 03x + 55 pages. The ratio of the number of pages seen to the total number of pages is 2:3, so there is: 03x + 55 = 2/3x Solve the equation: 13x + 55 = 2/3x 13x - 2/3x = 55 01x = 55 x = 550 Therefore, the total number of pages in this book was 550.

Little Light read 3/8 of the book in the first week, and the remaining 1/5 in the second week. There were 34 pages left. He did not look at how many pages the book had.

1 answer

2024-09-18 15:37

Let's say the book has $x$pages. Little Light read $3/8$pages of the book in the first week, so he read $3/8 times x$pages. The remaining pages are $x - 3/8 <em> times x = 5/8 <em> times x$pages. The next week, he read the remaining $1/5$pages, so he read $1/5 times 5/8 times x$pages. According to the question, Little Light had read a total of $3/8'times x + 1/5'times 5/8'times x = 17/40 'times x$pages. Since Little Light did not read the book, the remaining pages were $34$. Therefore,$x - 17/40 So the book had a total of $960$pages.

Xiao Hong read a book. On the first day, she read one-fifth of the total number of pages. On the second day, she read another 30 pages. There were still 42 pages left. How many pages were there in this book?

1 answer

2024-09-18 23:26

On the first day, Little Red had read one-fifth of the total number of pages, which was one-fifth of the page. The next day, he read another 30 pages, so the remaining pages were the total number of pages minus 30 pages: 42 - 30 = 2 pages Therefore, the total number of pages in this book was five.

Congcong read a book called Encyclopedia for Children. He read 3/8 of the book in a week. There are 250 pages left. How many pages is there in this book?

1 answer

2024-09-18 15:37

The book had a total of 250 pages. Cong Cong read 3/8 of the book in a week, which was 250 pages, 3/8 = 666 pages. However, because Congcong had only read a part of it, he needed to add the remaining 250 pages. Therefore, the total number of pages in this book was 666 + 250 = 916.

Xiao Hong read a storybook. On the first day, she read 30 pages, which happened to be a quarter of the book. On the second day, she read a third of the book.

1 answer

2024-09-12 15:29

The next day, Little Red finished reading 30 pages of the book. The remaining pages were 1-1/4=3/4 pages of the book. On the first day, Little Red finished reading 1/4 of the book. The remaining pages were 3/4-1/4=1/4 pages. The next day, Little Red finished reading 1/4 of the book. The remaining pages were 1/4-3/4=1/4 pages. Therefore, Little Red finished reading 1/4+1/4=1 page of the book in two days.

Xiao Hong had read a book. In the first week, she had read 30% of the entire book, which was more than eight pages. At this time, there were still 76 pages that she had not read. How many pages was this book?

1 answer

2024-09-18 15:27

In the first week, Xiao Hong read 30% of the entire book, which was more than 8 pages. In other words, Xiao Hong read 8 + 30% + 8 = 13 pages. The remaining pages are 76, so the number of pages in the book is: 76 ÷ (1 - 30% - 8) = 76 ÷ 07 = 110 So this book has 110 pages.

Susie read a novel. In the first week, he read 20% of the total number of pages in the novel. In the second week, he read 30% of the remaining pages. Was there 140 pages left?

1 answer

2024-08-30 21:59

According to Susie's reading experience, she read 20% of the total number of pages in the first week, which was 40 pages. In the second week, she read 30% of the remaining pages, which was 90 pages. Therefore, there were 140 pages left in the novel. I hope this answer will be helpful!

Su Qian read a novel. In the first week, he read 20% of the total pages of the novel. In the second week, he read 30% of the remaining pages. At this time, there were 140 pages left.

1 answer

2024-09-02 18:54

According to the 20% of the total number of pages Su Qian read in the first week, the ratio of the total number of pages he read in the first week was: 20% ÷ 100% = 02 Therefore, Su Qian read 0.2 of the total number of pages in the first week, which was 20%. Next, based on the 30% of the remaining pages that Su Qian read in the second week, the ratio of the total number of pages that he read in the second week was calculated as: 30% ÷ 100% = 03 Therefore, Su Qian read 0.3 of the total number of pages in the second week, which was 30%. Then, the total number of pages left in the novel was: 140 + 02 = 880 Therefore, there were 880 pages left in the novel.

Xiao Hong read a book. On the first day, she read 25% of the total pages of the book. On the second day, she read two-fifths of the total pages of the book. There were still 35 nights left.

1 answer

2024-09-18 15:25

On the first day, Xiao Hong read 25% of the total number of pages in the book, which was 1/4. The next day, Xiao Hong read half of the book's pages, which was 1/8. The remaining pages were 35% of the total number of pages in the book, which was 1/4 * 35% = 75%. Thus, the book had a total of 160 pages.