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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.

2024-09-18 15:37
1 answer
2024-09-18 16:23

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.

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.

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.

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.

1 answer
2024-09-18 15:36

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.

Little Qiao read a storybook, 18 pages a day, half of the book in a week, more than 20 pages, how many pages are left?

1 answer
2024-09-18 15:32

Little Qiao read 18 pages of a storybook every day, and in a week, she read more than 20 pages of half of the book. The calculation method is as follows: In the first week, Little Qiao read 18 × 7 = 126 pages. The remaining pages were: The remaining pages of the book-the number of pages read in a week = the remaining pages- 126 - 126 = 100 pages. Thus, Little Qiao still had 100 pages to read.

Dongdong was reading a book with a total of 150 pages. At the end of the second week, he found that the number of pages he had not read was exactly the same as the number of pages he had read in the first week.

1 answer
2024-09-25 17:07

Dongdong read a total of x pages at the end of the first week. The total number of pages in this book is 150, so: At the end of the second week, Dongdong had read (150 - x) pages. Dongdong hadn't finished reading 150 pages by the end of the second week, so he had read (150 - x) pages less than or equal to 150 pages. And because Dongdong had read page X in the first week: x = 150 - x + 1 = 149 The solution was x = 1, so Dongdong read a total of 149 pages in the first week. Dongdong had read (150 - 1) = 149 pages by the end of the second week. Therefore, Dongdong read a total of 149 pages in this book, and there was still one page left at the end of the second week.

The number of pages read in a book was the remaining 75%. How many pages did the book read account for? How many pages were left?

1 answer
2024-09-11 02:43

If the remaining 75% of the pages of a book were read, it meant that 75% of the pages had not been read. Then, the number of pages that were read would be 25%+80% = 3/4. The number of pages left is a fraction of the number of pages seen. It can be calculated in a similar way: the number of pages left is 1 -the number of pages seen = the number of pages left-the number of pages seen = 75% x the number of pages left divided by the total number of pages. Therefore, the remaining pages were 75% of the total number of pages. The answer was that the remaining pages were 75% of the number of pages read divided by the total number of pages.

Little Light had a book. He read 18 pages on the first day, which was two-fifths of the book. How many pages were left?

1 answer
2024-09-18 15:30

This book was left: Two-fifths of the book is 18 pages, 2/5 = 9 pages (with two decimals) Therefore, there were still nine pages left in the book.

A book had a total of 170 pages. He had already read 90 pages. How many pages were left?

1 answer
2024-09-07 17:18

There were 170 pages in a book. He had already read 90 pages, so there were still 80 pages left.

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