Lanlan and Naughty, reading the same book. This book has a total of 90 pages. I've already read two-thirds of it. Naughty has read the same number of pages.
If Lan Lan and Naughty had read two-thirds of the book, then Naughty would have read 30 pages. The remaining pages were $90 - 30 = 60$pages. Therefore, Lan Lan still needed to read $60$pages. So they still needed to look at the $40$page and the $20$page.
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.
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 reads a book with a total of 170 pages. He has already read 90 pages. How many pages does he read on average every day?
Naughty had read 90% of the 170 pages of the book, which meant that Naughty had read 90/19=5267 pages. The average number of pages to read in the remaining four days can be calculated by dividing the total number of pages by the number of days. 170 pages/4 days =45 pages/day. So, on average, Piao Jiao would read 45 pages a day.
A book had a total of 200 pages, and he had already read 120 pages. What percentage of the book had he read?
A book has a total of 200 pages, and 120 pages have been read. The percentage of the book can be calculated by calculating the ratio of the number of pages in the book to the number of pages that have been read. The total number of pages in the book is 200, and the number of pages that have been seen is 120. Therefore, the ratio of the number of pages that have been seen to the number of pages in the book can be calculated as: 120 ÷ 200 × 100% ≈ 625% Therefore, he had read about 625% of the book.
Xiao Jun read a book and read two-thirds of the book in seven days. In the next five days, he read a total of 40 pages and just finished it. How many pages are there in this book?
Suppose the book has x pages: Seven days ago, Xiao Jun read 7 × 2/3 = 14/3 pages, which was 14/3 div7 = 4/9 pages. Xiao Jun read (x + 5) × 4/5 = x + 20/3 pages in the last 5 days. Because Xiao Jun had read a total of 40 pages, there were: 4/9 + 20/3 = x The solution was x = 360/9 + 20/3 = 480/3 pages. Therefore, this book had a total of 480/3 pages.
A book had a total of 170 pages. He had already read 90 pages. How many pages were left?
There were 170 pages in a book. He had already read 90 pages, so there were still 80 pages left.
How many pages did he read when he read two-thirds of the 170 pages of the book?
The book had a total of 170 pages. Two-thirds of it was equivalent to 70 pages. The remaining three-quarters were equivalent to 40 pages. Therefore, he had read 170 pages in total, and he needed to read the remaining 40 pages twice, which was 70 pages.
Naughty is reading a storybook. He has read 5/7 of the total number of pages. There are still 40 pages left. How many pages does this book have? Trouble calculating!
Let's assume that the total number of pages in this book is x. Naughty had already read 5/7 of the total number of pages, which meant that he had already read 3/5 of x pages. Therefore, he still had 2/5 of x pages to read. There are still 40 pages to read, so the total number of pages that Naughty still needs to read is: 2/5 of x + 40 To simplify it: x + 40 / 5 The general score was: x + 80 Since x is the total number of pages: x + 80 = x / 5 + 80 To simplify it: x = 400 Therefore, the book had a total of 400 pages.
Naughty was reading a storybook. He had already read 5/7 of the total number of pages. There were still 40 pages left. How many pages were there in this storybook?
Let's say this storybook has a total of $x$pages. Naughty had finished reading $5/7$of the total page count, which meant that he had $2/7$left. Therefore, Naughty still needed to read $40$to finish the total number of pages. According to the meaning of the question, mischievous still needs to look at $40$pages, so $x - 40$should be divided by $7$. Since $x$is the total number of pages,$x$should be greater than or equal to $40$. Therefore, we can write an equation: $$x \geq 40 + 40 \times 7 = 560$$ The solution to this equation is $x=567$. So this story book had a total of $567$pages.
A comic book had a total of 19 pages. He had already read seven pages. How many pages were left?
This comic book had a total of 19 pages. He had already read 7 pages, so there were 19 - 7 = 12 pages left.