19 days one day read online
If I read 30 pages a day, I can finish it 10 days earlier. If I read 15 pages a day, I can finish it 10 days later
The time spent reading a book depends on the number of pages you read each day. Reading 30 pages a day is 10 days slower than reading 15 pages a day. So if we were to read 30 pages a day, we would need to spend an extra 10 days on top of the original 10 days to finish the book.
On the contrary, if we read 15 pages a day, we would need to spend an extra five days on top of the original 10 days to finish the book. So we can finish the book ten days earlier or ten days later, depending on the number of pages we choose to read and our reading speed.
1 answer
2024-09-21 07:02
Xiaodong read a book. On the first day, he read one-fifth of the book, and on the second day, he read 15 pages. In this way, he read the whole book in two days
Xiao Dong read a fifth of the book on the first day and 15 pages on the second day. In two days, he read 15 times the book. Therefore, he had read the entire book in two days, 3/2 = 15 times. Then the book had a total of $pages × 15 = (pages + 15)+2 $pages.
1 answer
2024-09-12 15:06
Lili finished reading a storybook in 8 days. She read 150 pages in the first 3 days. For the next 5 days, I read 42 pages a day. How many pages do I read on average every day?
Lili spent 8 days to finish reading a storybook. She read 150 pages in the first 3 days and 42 pages a day in the next 5 days. So she read a total of $150/times 3 + 42/times 5 = 2220$pages.
And the total time she spent was $8$days, so she read an average of $2220 / 8 = 265$pages per day.
So Lili read an average of 265 pages a day.
1 answer
2024-09-14 20:25
Li Yun read a book. On the first day, he read 24 pages. On the second day, he read one-fifth of the book. In two days, he read one-third of the book. How much did you see the next day?
The next day, he read one-fifth of the book, which was page 24/5 = 48.
He read a third of the book in two days, which was 24 + 48 = 72 pages.
Therefore, he read page 48 the next day.
1 answer
2024-09-12 15:03
18 pages a day, 14 days to read and play. If you finish reading it five days in advance, how many pages should you read every day?
If you read 18 pages a day, it would take you 14 days to finish it. If you want to finish the book 5 days earlier, you need to shorten the number of days to 10 days. 5 days earlier is equivalent to reading 18 pages less per day, so you need to read 24 pages per day (14 days-5 days =10 days).
1 answer
2024-09-21 06:54
Little Ming read a book. He read 15 pages in the first 4 days and 6 pages a day in the next 5 days. How many pages did he read on average every day?
Xiao Ming read a book for the first 4 days and read 15 pages, then read 6 pages every day for 5 days. We can use the following formula to calculate the average number of pages seen per day:
Average number of pages read per day = total number of pages/days
Substituting the total number of pages and the number of days into the formula, we get:
Average number of pages read per day = 15 pages/4 days = 3 pages/day
Therefore, Xiao Ming read an average of three pages a day.
1 answer
2024-09-16 12:50
Xiao Ming read a book. He read 72 pages in the first 4 days and 29 pages a day for the next 6 days. How many pages did he read on average every day?
If Xiaoming reads 72 pages in the first 4 days, then Xiaoming's total page count in the first 4 days is 72 pages.
Reading 29 pages every day for the next 6 days would mean that the total number of pages for the next 6 days would be 29 pages x 6 days = 171 pages.
Therefore, Little Ming's total page count in the last six days was 171 pages.
Little Ming read 171 pages per day for the next 6 days, 6 days = 27 pages.
Therefore, Xiao Ming read an average of 27 pages a day.
1 answer
2024-09-14 19:45
Lili read a storybook. She read 78 pages in the first 3 days and 40 pages a day in the next 4 days. how much of this book
Assuming the book has a total of n pages, Lili read 78 pages in the first 3 days, then there are still
n - 3 × 78 = n - 262 pages not read.
In the next four days, she read an average of 40 pages a day. In these four days, Lili read a total of 40 × 4 = 160 pages.
Therefore, Lili had read a total of n - 262 + 160 = 322 pages, just enough to finish the book.
So this book had 322 pages.
1 answer
2024-09-14 19:57
Xiaoke read a novel. On the first day, she read one-fifth of the total number of pages. On the second day, she read ten pages less than the first day. In two days, she read exactly one-third of the total number of pages.
Assuming that the novel has a total of $n$pages, the first day read $5/ %=005$pages, then the second day read $005/times (1-005)=001$pages. Because I read ten pages less on the second day than the first day, I read $10-001=999$.
Since he had read one-third of the total pages in two days, he had read a total of $(1/3)×999 =0399$pages in two days.
Therefore, Xiao Ke read a total of $0399,5 =1995$pages, or about $10$pages.
1 answer
2024-09-25 16:51
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