webnovel

How many pages of this 125-page sci-fi novel had Xiaoming read? What if he needed to read another 35 pages, which was 12 pages less than one-third of the book?

2024-09-15 14:10
0 answer

No answer now

Ding had read 300 pages of a book, which was 27 pages less than the number of pages he had not read. How many pages were left?

1 answer
2024-09-19 03:20

Assuming that the book has a total of n pages, then the ones that Ding has not read are n-300 pages. According to the question, Ding read 300 pages more than he did not. n - (n-300) = 300 To simplify it: 2n - 300 = 300 2n = 300 + 300 2n = 600 n = 300 Therefore, the book had a total of 300 pages. Little Ding had already read 300 pages, but he hadn't read 300-300=0 pages. Hence, there were still 0 pages left.

A book had a total of 200 pages, and he had already read 40 pages. How many percent less had he read than he had not?

1 answer
2024-09-13 12:42

If a book has 200 pages and 40 pages have been read, then the number of unread pages is 160. The ratio of pages that have been read to the number of pages in the book is:40 pages/200 pages =02%. Therefore, the answer for those who have read less than those who have not read is:02%-100%=002%. In other words, it was about 2% less than those who did not study.

When Xiaoming read a book, he would read 3/8 of the book on the first day and 18 pages on the second day. At this point, the number of pages read accounted for 3/5 of the total number of pages. How many pages are there in this book

1 answer
2024-09-25 17:26

Xiao Ming read 3/8 of the book on the first day, which was 042675 or 42675% of the book. The next day, he read 18 pages, and the remaining pages were 5/8 of the book, which was 075 or 75%. Suppose the book has x pages: 3/5 of the total number of pages read = (x * 3/8 + 18) / x = 3/5 To simplify it: x = 42 * 8 / 3 = 96 Therefore, the book had a total of 96 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.

Dongdong read a book on the first day, the ratio of the number of pages he had read to the number of pages he had not read was 2 to 3. The next day, he read another 30 pages, and the number of pages he had not read was this one

1 answer
2024-09-23 13:59

The total number of pages in the book was $30+30=60$pages. The number of pages read is $2x$, and the number of unread pages is $3x$. where $x$is an integral number. On the first day, the ratio of pages read to unread was $2:3, so $2x=3x+30. The solution is $x=10$. Therefore, the number of pages read is $2x=20$, and the number of unread pages is $3x=30$. So this novel has a total of $60$pages, I've read $20$pages, I haven't read $30$pages.

There were 150 pages in a book, and he had already read 38 pages. How many pages would he read in the remaining seven days?

1 answer
2024-09-14 19:56

He had already read 38 pages, so the remaining pages were 150 - 38 = 112 pages. In order to finish reading these 112 pages, he had to read 112/7 = 16 pages every day. Therefore, he read an average of 16 pages a day.

A storybook had 72 pages. He had clearly read two-ninths of the book. How many pages had he read? How many pages were left?

1 answer
2024-09-18 15:27

He had clearly read two-ninths of the book, which was page 18. Therefore, there were still 64 pages left in the book.

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