Xiaoming reads a storybook. For the first 4 days, he reads 25 pages a day. After that, he reads 40 pages a day. After 6 days, he just finishes reading. How many pages does Xiaoming read per day on average?

2024-09-11 15:32

Xiaoming reads a storybook. For the first four days, he reads 25 pages a day, and then 40 pages a day. After reading for another six days, he just finished reading. How many pages does Xiaoming read on average every day?

1 answer

2024-09-11 18:11

Xiaoming reads a storybook for the first 4 days, reads 25 pages a day, then reads 40 pages a day, and reads for 6 days, just finishing it. How many pages does Xiaoming read on average every day? The number of pages in the storybook was fixed. The number of pages read in the first four days was 25 x 4 = 100 pages, and the remaining pages were 100 - 6 x 25 = 35 pages. Therefore, Xiaoming reads an average of 35 pages a day.

If Xiaoming reads a storybook, he reads 38 pages in the first 2 days and 54 pages in the next 3 days. How many pages does Xiaoming read on average every day?

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2024-09-12 20:50

Xiao Ming read a story book and read a total of 38 pages in the first two days and 54 pages in the next three days. We can use the total number of pages to deduct the number of pages in the first two days and the next three days to get the average number of pages that Xiaoming reads every day. Total pages = 38 + 54 = 82 In the previous two days, he had read 38 pages, so the ratio of the number of pages read in the previous two days to the total number of pages was 38 pages/ 82 pages = 047875, which could be approximately expressed as 047875. In the next three days, a total of 54 pages were read. The ratio of the number of pages read in the next three days to the total number of pages was 54 pages/ 82 pages = 06667, which could be approximately expressed as 06667. Therefore, on average, Xiaoming reads 047875 × 2 + 06667 × 3 = 016533 × 2 + 023333 × 3 = 039167 × 2 + 050938 × 3 = 089715 × 2 + 010785 × 3 = 1575 × 2 + 0192 × 3 = 27533 every day, which is about 275. Therefore, Xiao Ming read an average of 275 pages a day.

Xiao Ming reads a book. If he reads 15 pages a day, he will finish it in 24 days. If he reads 20 pages a day, how many days will he finish it?

1 answer

2024-09-16 12:52

If Xiao Ming reads 15 pages a day, the total number of pages he needs is: 15 pages/day x 24 days = 360 pages Therefore, Xiao Ming needed to read 360 pages to finish it in 24 days. The number of days required to read 20 pages a day is: 20 pages/day x days = 20 days Therefore, Xiao Ming needed to read for 20 days to finish the book.

If Little Ming reads a book, if he reads 15 pages a day, he will finish it in 24 days. If he reads 20 pages a day, how many days will he finish it?

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2024-09-16 12:50

If Xiao Ming reads a book every day for 15 pages and 24 days, then the book has a total of 15 * 24 = 360 pages. If I read 20 pages a day, how many days can I finish it? Assuming that the book has x pages, the total number of pages that Xiaoming needs to read is 20 * x days. Because Xiao Ming needed to read 360 pages, there were: 20 * x = 360 Solve this equation: x = 180 Therefore, Xiao Ming needed to read 180 pages to finish the book. If he read 20 pages a day, he would need 180 * 20 days = 3720 days to finish the book.

A 130-page novel, Xiaoming reads an average of four pages a day. Can he finish it in 28 days?

1 answer

2024-09-13 13:00

No. If Xiao Ming reads four pages of a novel every day, then it would take him 28 days to finish a 130-page novel because reading four pages a day would require a total of 130 pages, 4 = 35 pages. However, because the length of the novel was fixed, Xiaoming could not finish the book in 28 days, so the answer was no.

In a book, Xiaoming reads page a every day on average for 7 days. How many pages does he start reading on the eighth day?

1 answer

2024-09-19 05:48

In a book, Xiao Ming read page A for an average of seven days a day, so he read page 7A in total. Therefore, the number of pages to read on the eighth day should be: 8 days × a pages/day = 7a pages Adding the first 7 pages and the last 1 page gives: 8 + 7 = 15 days Because Xiao Ming had already read page 7a on the seventh day, the remaining pages should be: 15 days-page 7a = page 8a Therefore, Xiao Ming should start reading page 8a on the eighth day.

When Teacher Zhang reads a book, he reads an average of 20 pages a day for the first 4 days, and 63 pages in total for the next 7 days. He just finishes reading this book. How many pages does Teacher Zhang read on average every day?

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2024-09-13 12:58

Assuming that the book has a total of n pages, then Teacher Zhang has read 20×4=80 pages in the past four days, leaving n-80 pages. In the next 7 days, he read 63 pages, so the remaining pages were 63-80=-3 pages. This result is negative, which is not consistent with reality, so there is a contradiction in the hypothesis. Therefore, this problem is not solved. Teacher Zhang reads an average of 80 pages a day, but he has read 20 pages in the past four days, so he still needs to read another 40 pages to finish the book.

If Xiaoming reads a novel and reads 35 pages a day, he will finish the book one day later than the stipulated date. If he reads 40 pages a day, he will read 5 pages less on the last day…

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2024-09-11 15:21

Xiao Ming reads a novel. If he reads 35 pages a day, he will finish the whole book one day later than the stipulated date. If he reads 40 pages a day, he will read 5 pages less on the last day. We can set the total number of pages of the novel as x and the specified date as d, then the total number of pages that Xiaoming needs to read is x/35 + x/40 - 1. According to the question, Xiaoming needs to read d books, so there are: x/35 + x/40 - 1 = d Transferring the terms of the equation gave: x/100 = d Therefore, Xiao Ming needed to read 100 pages a day to finish the novel by the stipulated date. If you read 35 pages a day, you would need an extra two days to finish the novel. If you read 40 pages a day, you would need an extra three days to finish the novel. After considering all, Xiaoming needed to read 37 pages a day to finish the novel according to the stipulated date. On the last day, he had to read 5 pages less.

Xiaoming read a book for the first four days and read an average of eight pages a day. After two days, he read a total of 48 pages. How many pages did he read per day?

1 answer

2024-09-14 19:49

Xiaoming read a book for the first four days, on average, he read eight pages a day. In the first four days, he read a total of 8 × 4 = 32 pages. In the next two days, he read a total of 48 pages, which means that in the remaining time, Xiaoming read an average of 48/7 = 8 pages per day. Therefore, Xiao Ming spent the rest of his time reading an average of 8 - 8 = 0 pages a day. In other words, Xiao Ming had already finished reading the book, so he read an average of 0 pages a day.

The number of pages that Xiaoming reads on the first day is 20% of the whole book. The next day, he reads 20% of the remaining pages. The number of pages that he reads on the second day accounts for 100% of the total pages of the whole book.

1 answer

2024-09-12 08:45

The number of pages that Xiaoming reads on the first day is 20% of the whole book. The number of pages that he reads on the second day is 20% of the remaining pages. The percentage of the number of pages that he reads on the second day can be calculated as follows: The number of pages that Xiaoming read on the first day was 20% of the entire book. In other words, the total number of pages that Xiaoming read was: Total pages = 20% × pages of the book = 02 × pages of the book The number of pages that Xiao Ming read the next day was 20% of the remaining pages. In other words, the total number of pages that Xiao Ming read was: Total pages = 20% x Remaining pages = 02 x Remaining pages Then, the percentage of the number of pages that Xiao Ming read the next day in the total number of pages in the book can be calculated as: The number of pages Xiao Ming read the next day divided by the total number of pages in the book × 100% = 02 divided by 08 × 100%= 25% Therefore, the number of pages that Xiao Ming read the next day accounted for about 25% of the total number of pages in the entire book.

If Xiao Qiang reads a literary masterpiece, if he reads 20 pages a day, he can finish it in 18 days. If he reads 5 pages less a day, how many days can he finish it?

1 answer

2024-09-15 06:36

If you read 20 pages a day, you can read one literary masterpiece in 18 days, which is an average of 217 books per month. If you read five pages less a day, then it would take 10 days to read 15 pages a day, and it would take another 7 days to read 20 pages in 18 days.