A book is fifty pages thick. I read five pages a day. How many days does it take to finish reading it?
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A book has a total of 150 pages, and Xiao Ming has already read 54 pages. The remaining pages are 8 pages a day, and it will take him a few days to finish them.
Xiao Ming had already read 54 pages and was reading 8 pages a day. Therefore, he still needed 8 × 7 = 56 days to finish reading the remaining pages.
He had to read 12 pages a day, which would take him 15 days to finish. If he finished the book five days earlier, how many pages would he read every day?
It would take 15 days to finish reading 12 pages a day. How many pages would you read if you finished the book five days in advance? If the book has 100 pages and you read 12 pages a day, the number of days it takes to read the whole book is: 100 pages/12 pages/day = 866 days Because the book needed 15 days to finish, it clearly needed 15-866=634 days. In these 634 days, he had to read 12 pages a day to finish the book five days earlier. Therefore, if you finish this book five days in advance, how many pages do you read every day: 12 pages/day x 634 days = 792 pages Therefore, he had to read 792 pages a day to finish the book five days earlier.
How many pages are there in this storybook? If Xiao Qiang reads 20 pages a day, what if there are 15 pages left in the book after five days?
According to the question, Cockroach read 5 days *20 pages/day =100 pages, and the remaining 15 pages of the book are equal to the total number of pages-100 pages that have been read, so the total number of pages is: 100 pages +15 pages =115 pages. The answer was page 115.
There were 170 pages in a book. He read 12 pages a day, and after 13 days, there were only a few pages left.
A book has 120 pages. I read 60 pages in three days. How many days does it take to finish it?
A book has 120 pages. If you only read 60 pages a day, you would need to read 120 pages/60 pages/day = 2 days. Therefore, he only needed two days to finish reading a book.
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.
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.
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.
A book has 170 pages, Xiao Gang has read 80 pages, and the rest will take 5 days to finish. How many pages do you read on average every day?
Xiao Gang needed to read an average of 30 pages a day to finish the remaining 170 pages in five days.
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).