Little Ding Ding reads a book with a total of 170 pages. The number of pages that have been read is 10 pages more than the remaining 3 times, so how many pages are left?
Assuming that the number of pages that Little Ding Ding had read was x, the remaining pages were 170-x. According to the conditions in the question, the number of pages seen is 10 pages more than the remaining pages. The following equation can be listed: x = (170 - x) + 10 To simplify it: 2x = 180 x = 90 Therefore, the number of pages that Little Ding Ding had read was 90, and the remaining pages were 170-90=80. Therefore, Little Ding Ding still had 80 pages left to read.
There were 360 pages in a science book. Little Ding Ding had already read more than half of the pages. How many pages were left?
Little Ding Ding had already read more than half of the pages, so there were still 360 - 10 - 50 = 190 pages left.
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
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.
Ding had read 300 pages of a book, which was 27 pages less than the number of pages he had not read. How many pages were left?
Assuming that the book has a total of n pages, then the ones that Ding has not read are n-300 pages. According to the question, Ding read 300 pages more than he did not. n - (n-300) = 300 To simplify it: 2n - 300 = 300 2n = 300 + 300 2n = 600 n = 300 Therefore, the book had a total of 300 pages. Little Ding had already read 300 pages, but he hadn't read 300-300=0 pages. Hence, there were still 0 pages left.
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.
Little friend reads a book. He reads 8 pages a day. How many pages do you read in 3 days? If there are 50 pages left after 3 days, then the book has a total of
Little Peng reads a book, 8 pages a day, 3 days, how many pages do you read in total? Read in 3 days:8 pages/day x 3 days = 24 pages If there are still 50 pages left after 3 days, the book has: 50 pages/(8 pages/day- 8 pages/day) = 10 days Therefore, the book had a total of 10 days and 10 x 24 pages = 240 pages.
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.
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.
A book with a total of 240 pages. Xiaolan has already read 2/3 of the total pages of the book. How many pages are left to read and write?
Xiaolan had already read 2/3 of the total number of pages in the book, so she had already read (2/3) × 240 = 80 pages. The remaining pages were 240 - 80 = 160 pages. Therefore, there were still 160 pages left to read.
Naughty has read more than one-fifth of the total number of pages in a book. Twenty-four pages and the remaining two-thirds of the total number of pages. How many pages are there?
Let's assume that the total number of pages in this book is x. The number of pages that Naughty had already read was x +5 + 24, which was a total of x +5+24. The remaining pages make up two-thirds of the total number of pages, so there are: x÷5+24 + x/2 = x The above formula was simplified: x/2 + 24 = x After the reduction, it was obtained: x/2 = 24 Solution: x = 48 Therefore, the total number of pages in this book was 48.