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Xiaoming reads a book on the first day, reading 20% of the total number of pages, the number of pages read on the second day and the number of pages read on the first day is 5:4

Xiaoming reads a book on the first day, reading 20% of the total number of pages, the number of pages read on the second day and the number of pages read on the first day is 5:4

2024-09-12 08:49
Xiao Ming is reading a book. On the first day, he read 20% of the total number of pages. The ratio of the number of pages read on the second day to the number of pages read on the first day was 5:4. There were 110 pages left. How many pages were there in the book?
1 answer

Xiao Ming read 20% of the total number of pages on the first day of reading a book, which means that the total number of pages multiplied by 20% equals 20% of the total number of pages. On the second day, the ratio of pages read on the first day was 5:4, which meant that half of the total pages read on the second day was 25% of the total pages. Therefore, Xiao Ming read the total number of pages multiplied by 25% the next day, which was equal to the total number of pages multiplied by 5%. Divide the total number of pages by 5 to get the number of pages that Xiaoming read the next day divided by 5. That is, the total number of pages divided by 5 multiplied by 40% equals the total number of pages multiplied by 10%. Therefore, Xiao Ming read the total number of pages multiplied by 10% the next day, which was equal to the total number of pages multiplied by 5.

The number of pages that Xiaoming reads on the first day is 20% of the whole book. The next day, he reads 20% of the remaining pages. The number of pages that he reads on the second day accounts for 100% of the total pages of the whole book.

The number of pages that Xiaoming reads on the first day is 20% of the whole book. The number of pages that he reads on the second day is 20% of the remaining pages. The percentage of the number of pages that he reads on the second day can be calculated as follows: The number of pages that Xiaoming read on the first day was 20% of the entire book. In other words, the total number of pages that Xiaoming read was: Total pages = 20% × pages of the book = 02 × pages of the book The number of pages that Xiao Ming read the next day was 20% of the remaining pages. In other words, the total number of pages that Xiao Ming read was: Total pages = 20% x Remaining pages = 02 x Remaining pages Then, the percentage of the number of pages that Xiao Ming read the next day in the total number of pages in the book can be calculated as: The number of pages Xiao Ming read the next day divided by the total number of pages in the book × 100% = 02 divided by 08 × 100%= 25% Therefore, the number of pages that Xiao Ming read the next day accounted for about 25% of the total number of pages in the entire book.

1 answer
2024-09-12 08:45

Xiao Ming is reading a book. He had read 20% of the total number of pages on the first day. The number of pages read on the second day was 5:4 compared to the number of pages read on the first day. There were still 110 pages left to be read…

Xiao Ming reads a book on the first day, 20% of the total number of pages, and the number of pages read on the second day is 5/4 of the number of pages read on the first day, leaving 110 pages Assuming that the total number of pages in this book is x: I read 20% on the first day, which is 02x pages. I read 5/4x pages the next day because I read more pages the next day than the first day The remaining pages are x -02x- 5/4x = 110 pages Solve the equation: x = 1100 Therefore, the total number of pages in this book is 1100. Xiaoming read 200 pages on the first day and 300 pages on the second day.

1 answer
2024-09-12 08:32

Xiao Hong read a novel. On the first day, she read 9 pages more than 1/12 of the total number of pages. On the second day, she read 7 pages less than 1/8 of the total number of pages, leaving 93 pages.

The total number of pages Little Red read on the first day was (12+9)/(12×1+9)= 13 pages. The total number of pages Xiao Hong read the next day was (13-7)/(8×1+7)= 9 pages. The number of pages Little Red read the next day was 7 pages less than the first day, and the remaining pages were 9 pages more than the first day. Therefore, the total number of pages she read the next day was 9/7 times that of the first day, which meant that she read 18 pages the next day. According to the total number of pages read on the first day and the total number of pages read on the second day, the total number of pages of the novel could be calculated as:13+9+18=40 pages. Therefore, the novel that Little Red was reading was the 40-Page Fictions.

1 answer
2025-03-11 14:15

Little Red read a novel. On the first day, she read 1/12 of the total number of pages, which was 19 pages more. On the second day, she read 17 pages less than 1/8 of the total number of pages, leaving 93 pages left. This...

Xiao Hong read a novel on the first day, and she read 1/12 of the total number of pages, which was 19 pages more. On the second day, she read 17 pages less than 1/8 of the total number of pages, leaving 93 pages. On the first day, he read 1/12 of the total page count, which was 19 pages more. On the second day, he read (1-1/12)×19 = 11/12 pages. Since there were 93 pages left, he read 93/11/12 = 108 pages. The next day, if you read 17 pages less than 1/8 of the total number of pages, then you read (1-1/8)×17 = 7/8 pages the next day. Since there were 93 pages left, you read 93/7/8 = 160 pages the next day. Therefore, the total number of pages Little Red had read was 160+93=253.

1 answer
2025-03-09 13:36

Little Red read a novel. On the first day, she read 1/12 of the total number of pages, which was 19 pages more. On the second day, she read 17 pages less than 1/8 of the total number of pages, leaving 93 pages left. This...

Xiao Hong read a novel on the first day, and she read 1/12 of the total number of pages, which was 19 pages more. On the second day, she read 17 pages less than 1/8 of the total number of pages, leaving 93 pages. If the total number of pages in this novel is X, then the number of pages that Little Red reads on the first day is X/12+19, the number of pages that she reads on the second day is X/8-17, and the remaining number of pages is X-93. According to the meaning of the question, the following equation can be listed: The number of pages Xiaohong read on the first day + the number of pages Xiaohong read on the second day = X/12+19+X/8-17 = X To simplify it: X = 962 Therefore, the total number of pages in this novel was 962. On the first day, Little Red read 962/12+19=86 pages. On the second day, she read 962/8-17=105 pages. The remaining pages were 962-93=871 pages. Little Red had read a total of 962+871=1733 pages, which was 93 pages less than the actual total number of pages. Therefore, Little Red had actually read 1733-93=1640 pages.

1 answer
2025-03-10 03:49

There is a book with a total of 200 pages. How many times does the number 2 appear in these pages?

The frequency at which the number 2 appears on the page number of each book depends on the format and arrangement of the page number. In the common page format, the number 2 usually appears around 10% of the time, but it can also be higher or lower. For example, if the pages of a book are arranged in chapter order and each chapter contains the number 2, then the frequency of the number 2 appearing in each chapter is 10%. In addition, if the pages of a book are arranged in page order, and each page contains the number 2, then the number 2 appears on one of every ten pages. Therefore, to calculate the number of times the number 2 appears in a 200-page book, you need to first determine the format and arrangement of the page numbers and then calculate the number of times the number 2 appears in every chapter or every 10 pages. The specific calculation method could be completed using a statistics software or online tools.

1 answer
2024-09-13 12:45
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