Xiao Xiao was reading a 150-page book. She had already read two-fifths of the book. How many pages were left?
If Xiaoxiao had already read two-fifths of a 150-page book, then she had already read 150 × 2/5 = 60 pages. The remaining pages were 150 - 60 = 90 pages. Hence, Xiao Xiao still had 90 pages to read.
Xiao Ming is reading a 150-page storybook. He has already read two-fifths of the book. How many pages are left?
Xiao Ming had already read two-fifths of a 150-page storybook, so he had already read 150 × 2/5 = 60 pages. Therefore, there were still 150 - 60 = 90 pages left in the storybook.
Xiao Xiao was reading a 150-page book. She had read two-fifths of the book in four days. How many pages were left?
Xiao Xiao read a 150-page book for four days and read two-fifths of the book. Xiaoxiao reads 1/5/4 = 1/10 of the book every day The book had 150 pages, so Xiaoxiao still needed to read pages 1 - 1/5 - 1/10 = 4/5. And because Xiaoxiao had already read two-fifths of the book, there were still four to five pages left. Hence, Xiao Xiao still needed to read 2/5 pages.
Xiao Xiao read a science book on the first day and read 30 pages, which is two-fifths of the book. How many pages has Xiao Xiao not read yet?
Your question is a little unclear. Can you provide more context information? For example, what is the "book" that you are referring to and why did Xiaoxiao read it? This way, I can better help you answer your questions.
Xiao Ming was reading a 200-page storybook. He had already read two-fifths of the book and had 10 more pages. How many pages were left?
Xiao Ming had already read two-fifths of a 200-page storybook, which was 10 pages more. 200 pages × 2/5 + 10 pages = 40 pages The remaining pages were: 200 - 40 pages = 160 pages Therefore, Little Ming still had 160 pages left.
Xiao Hong had already read 40 pages of the book, which was exactly two-fifths of the book. How many pages were left?
If Xiao Hong had already read 40 pages of a book, which was two-fifths of the book, then Xiao Hong had already read 20% or 0.2 times the book. How many pages are there in the book? You can divide the number of pages by the number of pages in the book: (100% - 02) / 100% = 90% Therefore, Little Red only had 10 pages left.
There were 82 pages in a story book. Xiao Ming had already read page A. What was the answer on page 75?
The Story King has 82 pages. Xiao Ming has read page A, so there are 75 pages left. The answer was that Xiao Ming still needed to read the 75-page Story King.
Xiao Hong read a book and read 15 pages a day. After 4 days, she read three-fifths of the book. How many pages does this book have?
Assuming that the book has a total of $x$pages, how many pages has Xiaohong read in 4 days? Based on the 15 pages she read every day, she read a total of $15,4 =$60 pages. Then she read three-fifths of the book, which means that she only read the $3/5 part of the book. Therefore, we can write the equation: $$60 = 3/5 \times x$$ To solve this equation, you can get $x = 60 times 5/3 = 100$. Therefore, the book had a total of 100 pages.
Xiao Ming read a book with 240 pages. He had already read 4 pages. On average, he would read 15 pages a day. Which page would Xiao Ming start reading on the fifth day?
Xiao Ming read an average of 15 pages a day. He had already read 4 pages, so he still needed to read 4/15 = 02 days. Because Xiao Ming needed to watch for 5 consecutive days, he could move the days that he needed to watch forward by 5 days. 2 days + 4 days = 6 days Therefore, Little Ming needed to start from page 6, which was page 11.
Xiao Lin was reading a book. He had already read 180 pages, and there were still 5/6 left. How many pages is this book?
This book had a total of 180 + 5/6 = 195 pages.
Little Ming was reading a 30-page book, and he had already read two-fifths of it. How many pages were left?
Xiao Ming had already read two-fifths of a 30-page book, so there were 30 - 2/5 = 30 - 04 = 296 pages left. Therefore, there were 296 pages left in the book.