webnovel

Xiao Ming had read 20 pages of a book on the first day, and there were still 30 pages left. The ones he had read and the ones he had not read each accounted for a fraction of the total pages of the book

2024-09-25 08:57
1 answer
Anonymous
2024-09-25 09:24

The book had a total of 80 pages. Xiao Ming read 20 pages on the first day and did not read the remaining 30 pages. Therefore, the number of pages that Xiao Ming had read was 20/80=25% of the total number of pages. The number of pages that he did not read was 30/80=375%. Therefore, the total number of pages in the book was about 75% and 25% of the total number of pages that Xiao Ming had read and the number of pages that he had not read.

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
2024-09-10 18:54

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 Ming has read accounts for the total number of pages:80 pages/101 pages =08(copies) The number of pages that have not been read accounts for the total number of pages:31 pages/101 pages =03(copies) Therefore, there were 08 copies and 03 copies for those that Xiao Ming had seen and those that he had not seen.

Xiao Ming is reading a book. He had read 20% of the total number of pages on the first day. The number of pages read on the second day was 5:4 compared to the number of pages read on the first day. There were still 110 pages left to be read…

1 answer
2024-09-12 00:32

Xiao Ming reads a book on the first day, 20% of the total number of pages, and the number of pages read on the second day is 5/4 of the number of pages read on the first day, leaving 110 pages Assuming that the total number of pages in this book is x: I read 20% on the first day, which is 02x pages. I read 5/4x pages the next day because I read more pages the next day than the first day The remaining pages are x -02x- 5/4x = 110 pages Solve the equation: x = 1100 Therefore, the total number of pages in this book is 1100. Xiaoming read 200 pages on the first day and 300 pages on the second day.

Xiao Ming read a comic book. He had read 39 pages and there were still 52 pages left. How many pages did Xiao Ming read?

1 answer
2025-03-12 05:40

Xiao Ming read 39 pages and there were 52 pages that he did not read. The percentage of pages that Xiao Ming read in the total number of pages in this book is: 39 pages/52 pages = 7385% Therefore, the number of pages that Xiao Ming read accounted for 7385% of the total number of pages in the book.

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

1 answer
2024-09-07 09:18

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

Wang Hong read a book. On the first day, he had read 3/7 of the total number of pages. On the second day, he had read 1/4 of the total number of pages. How many pages of the book had he not read?

1 answer
2024-09-18 15:30

Wang Hong read a book on the first day, read 3/7 of the total pages, and the next day, read 1/4 of the total pages. How much of the book was left? Answer: The total number of pages in the remaining books is 3/7 of the total number of pages plus 1/4, which means the total number of pages is 8/7 plus 1/4, which is 9/11. Therefore, Wang Hong still had 9/11 of the book to read.

Xiao Ming read a novel. On the first day, he read 1/8 of the book and had 21 pages more. On the second day, he read 1/6 of the book and had 4 pages less, leaving 102 pages unread.

1 answer
2024-09-23 17:01

Xiao Ming read a novel on the first day and read 1/8 of the entire book with 21 pages more. On the second day, he read 1/6 of the entire book with 4 pages less, leaving 102 pages unread. We can use the following formula to calculate the remaining pages: Remaining pages = total pages-number of pages viewed Putting the known information into the formula, he obtained: Remaining pages = 102 pages Therefore, Xiao Ming read 1/6 of the book on the second day, leaving 102 pages.

A book had a total of 200 pages, and he had already read 120 pages. What percentage of the book had he read?

1 answer
2024-09-18 06:33

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.

Naughty read a storybook. On the first day, he read 40% of the total pages. On the second day, he read 24 pages less than the first day. There were still 56 pages left. This book…

1 answer
2024-09-18 16:25

The total number of pages in this book is 100 pages. On the first day, I read 40 pages. On the second day, I read 24 pages less than the first day. Therefore, the number of pages I read on the second day is the number of pages I read on the first day plus 24 pages. The next day, he read 40 + 24 = 64 pages. So the total number of pages in the book was 100. Naughty read 40 pages on the first day and 64 pages on the second day. The remaining pages were 100 - 64 = 36 pages. On the first day, Naughty had read 40% of it, which was four pages. The next day, he read page 64/4 = 14. Therefore, the number of pages left for Naughty was 36 - 14 = 22. So, in the end, Naughty finished reading 22 pages, which was four pages less than the first day.

Xiao Gang read a book. On the first day, he read 30% of the total number of pages. On the second day, he read 4 pages less than the first day. There were 44 pages left. How many pages were there in this book?

1 answer
2024-09-25 09:08

Let's say the book has x pages. 30% read on the first day = 03x pages, the remaining pages are x-03x = 07x pages. The next day, I read 4 pages less than the first day, so I read 07x-4 pages the next day. According to the meaning of the question, the remaining pages are 44 pages, so there are: 07x-4 = 44 Solve the equation: 07x = 48 x = 64 So this book has 64 pages.

a
b
c
d
e
f
g
h
i
j
k
l
m
n
o
p
q
r
s
t
u
v
w
x
y
z