Xiao Ming was reading a storybook. He had already read 40% of the book, and there were still 90 pages left. How many pages does this book have?
2024-09-16 10:50
1 answer
This book has a total of $90+ 40%$ $×$pages. Substituting 40% into the above formula: $90+04×$ $×$pages = $90+04×$ $×$ (100-90) = $90+04×$ $× $10 = $90+04×$ $× $100 = $90+40=130$pages Therefore, the book had a total of 130 pages.
Xiao Ming was reading a storybook. He had already read 40% of the book, and there were still 90 pages left. How many pages does this book have?
1 answer
2024-09-16 10:55
This book has a total of $90+40%<<20>>= 1620$pages. Of which, 40% of the pages were already read by Xiao Ming, and the remaining 90 +80=170 pages were unread.
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?
1 answer
2024-09-15 14:33
This book had a total of 180 + 5/6 = 195 pages.
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?
1 answer
2024-09-18 15:27
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...
Zhang Ming was reading a storybook. He read 30 pages a day. After three days, there were still 8 pages of the book left. How many pages were there in this storybook?
1 answer
2024-09-16 18:02
Let's say this storybook has a total of $x$pages. According to the topic, 30 pages per day meant $30/div2 = 15$per hour. Zhang Ming read $15$pages per hour in $3$days...
Xiao Ming read a book and read 15 pages a day. After reading for 4 days, he still had 2/5 of the book left. How many pages does this book have?
1 answer
2024-09-16 18:13
Xiao Ming read a total of $4/15 = 60$pages in 4 days. The remaining pages are $2/5$of the book, so the book has a total of $2/5/60 = 48$. Thus,...
Xiao Hua read a book and read 15 pages a day. After reading for 4 days, he still had 2/5 of the book left. How many pages of this storybook had he not read?
1 answer
2024-09-15 14:15
Assuming that this storybook had $x$pages, then the number of pages Little Light read every day was $15/div4 = 375$pages. Little Light had already read $4$for days, so the remaining...
Xiao Ming is reading a 150-page storybook. He has already read two-fifths of the book. How many pages are left?
1 answer
2024-09-10 12:34
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...
A book had a total of 150 pages, and Xiao Ming had already read 80 pages. How many pages have you read? How many of them were left?
1 answer
2024-09-16 10:54
Xiao Ming had already read 80 pages, so the number of pages he had read accounted for 2/3 of the total number of pages. The remaining pages were 150 -...
A storybook had 156 pages. Xiao Ming read it for three days and there were still 12 pages left. How many pages does Xiao Ming read on average every day? [Solution to the equation]
1 answer
2024-09-16 11:22
Suppose Xiaoming reads an average of x pages every day: The total number of pages read in 3 days is:3 × 156 = 458 pages Look at the remaining pages:12...
Little Fatty was reading a book. He had already read half of the book, but three pages were missing. There were still 90 pages left. How many pages were there in this book?
1 answer
2024-09-16 11:05
Lil 'Fatty had already read half of the book. Three pages were missing, which meant 1/2 - 1/2 + 3 = 2/3 pages. Therefore, Lil 'Fatty had already read 2/3...
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