Xiao Ming plans to read a novel every few days. If he reads 60 pages a day, he can finish it five days earlier. If he reads 40 pages a day, he will finish it three days later. Calculating how much faster reading 60 pages a day was than reading 40 pages a day: Reading 60 pages a day is better than reading 40 pages a day, reading 40 pages per hour, 60 pages = 067 hours Therefore, the total time Little Ming needed was: 1/067 = 1667(hours) 5 days ago 1667/067 = 28(hours) Days of delay Therefore, Xiao Ming needed 28 hours to finish reading this novel, which was longer than expected. Next, we can calculate the ratio of reading 60 pages a day to reading 40 pages a day, reading 40 pages per hour, reading 60 pages = 067 hours 's progress: Reading 60 pages a day is better than reading 40 pages a day. Reading 60 pages per hour/40 pages = 15 hours Therefore, the total time Little Ming needed was: 1 × 15 = 0667(hour) 5 days ago 0667/15 = 04(hours) Days of delay Therefore, Xiaoming needed four hours to finish reading this novel, which was shorter than the estimated time. To sum up, Xiaoming plans to read a novel every few days. If he reads 60 pages a day, he can finish it five days earlier. If he reads 40 pages a day, he will finish it three days later. If reading 60 pages a day was faster than reading 40 pages a day, reading 40 pages per hour, reading 60 pages per hour = 067 hours, the total time required was 1667 hours; if reading 60 pages a day was slower than reading 40 pages a day, reading 60 pages per hour, reading 60 pages per hour = 15 hours, the total time required was 0667 hours.
Xiao Ming planned to read 36 pages a day, but in fact, he read 500 pages in 12 days. 500 pages/12 days = 40 pages/day Because Xiao Ming reads 36 pages a day, the actual number of pages should be 40 pages more than the plan: 40 pages/day- 36 pages/day = 4 pages/day Therefore, Xiao Ming actually read four more pages of novels every day.
Xiao Li planned to finish reading a 200-page book by himself within a certain period of time. After reading it for five days according to the plan, he changed his plan and read five more pages a day. How many days did he need to read to finish the book? Reading five more pages a day meant that Xiao Li needed to read 200 pages/5 = 40 pages a day. Therefore, Xiao Li needed to read 40 pages per day, which was eight days to finish the 200-page book. Therefore, Xiao Li needed to change his plan and read five more pages a day. He needed to read five more pages a day for eight days to finish the book.
If Xiao Sen read 30 pages of a literature book every day for 20 days, he could finish it. If he needed to read 40 pages a day to finish it in 15 days, then his reading speed should be 10 pages more per day. The calculations were as follows: 20 days x 30 pages/day = 600 pages 15 days x 40 pages/day = 600 pages Reading 10 more pages per day, the total number of pages required is 600 pages/(30 pages/day + 40 pages/day) = 600 pages/70 pages/day = 88 days Therefore, Xiao Sen needed to read 10 more pages every day, which was about 88 days, to finish reading this literary book.
The total number of pages needed to read a 120-page book in 8 days and read an average of 10 pages per day is: 120 pages/3 days = 40 pages/day Therefore, after reading the first three days of the book, he needed to read another 40 pages to complete the reading in the next eight days. However, it should be noted that reading speed varies from person to person. Some people may be able to read a lot of content in a short time, while others may need more time. Therefore, whether or not he could finish the book within the planned time needed to be evaluated based on his reading ability.
Assuming that the book has x pages: 15 pages on the first day, so there are 15 pages in the book From now on, I'll read five more pages every day than the day before, so after five days, I'll read (15+5)×5=125 pages, plus the 15 pages I've already read before, that's a total of 270 pages Therefore, the book had a total of 270 pages.
Xiao Ming planned to finish reading a storybook in 16 days. On average, he would read 15 pages a day. 16 days x 15 pages/day = 280 pages Now he needed 10 days to finish the book, so how many pages did he need to read every day? Assuming that Xiao Ming can finish reading the book in 10 days, the total number of pages he needs to read every day is: 10 days x 280 pages/day = 3000 pages Therefore, Xiao Ming needed to read 3000 pages per day on average, divided by 10 days = 300 pages per day.
Ya-chan reads a 114-page book, on average, 12 pages a day. After a few days, there are still 18 pages left. You can calculate it by the following steps: 114 pages/12 pages/day = 9 days Since Ya-chan needed 9 days to finish reading the book, he needed to read it from the 1st day to the 9th day, a total of 9 days. In these nine days, Ya-chan needed to read 12 pages a day, so in total, he would read: 12 pages/day x 9 days = 108 pages However, there were still 18 pages left, so Ya-chan had to read the remaining 18 pages every day: 18 pages/day = 1 page In other words, Ya-chan needed to read an extra page of the remaining 18 pages every day to finish the book.
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).