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?

2024-09-16 10:54

1 answer

2024-09-16 11:32

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 - 80 = 70 pages. Therefore, the remaining pages accounted for 1/3 of the total number of pages.

A book had a total of 170 pages. He had already read 90 pages. How many pages were left?

1 answer

2024-09-07 17:18

There were 170 pages in a book. He had already read 90 pages, so there were still 80 pages left.

A comic book had a total of 19 pages. He had already read seven pages. How many pages were left?

1 answer

2024-09-16 10:50

This comic book had a total of 19 pages. He had already read 7 pages, so there were 19 - 7 = 12 pages left.

A book had a total of 90 pages. He had read three-fifths of it. How many pages were left?

1 answer

2024-09-16 11:35

A book of 90 pages, three-fifths read, then there was still: 90 - 3/5 * 90 = 90 - 36 = 54 pages. Therefore, there were still 54 pages left.

The book had a total of 170 pages, and he had already read 90 pages. (1) How many pages are left? (2) The remaining pages must be read within 4 days, on average, every day…

1 answer

2024-09-16 11:17

(1)There were still 80 pages left. (2)The remaining pages had to be read within four days, an average of 80 pages per day. This was equivalent to 80/170 = 05...

Xiao Ming has a book with a total of 240 pages. He has already read two-fifths of the book. How many pages are left?]

1 answer

2024-09-18 15:27

Xiao Ming had a book with a total of 240 pages and had already read two-fifths of the entire book, so he had already read 240 × 2/5 = 96...

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 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 10:50

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 =...

Xiao Ming had read 80 pages of a science and technology book, and there were 31 pages left. The pages that he had read and the pages that he had not read each accounted for a fraction of the total pages of the book.

1 answer

2024-09-11 02:54

The total number of pages in this book is 101. Xiao Ming has read 80 pages and has not read the remaining 31 pages. Therefore, the number of pages that...

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 is reading an extra-cursory book. This book has 150 pages. He has read three-fifths of the total pages. How many pages has he read and how many pages are left?

1 answer

2024-09-18 15:21

The total number of pages that Xiao Ming had read was 150. He had already read three-fifths of the total number of pages, which was 3/5 = 6%. Therefore, Xiao...