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A storybook had 156 pages. Xiao Ming read it for three days and there were still 12 pages left. How many pages does Xiao Ming read on average every day? [Solution to the equation]

2024-09-16 11:22
1 answer
2024-09-16 12:41

Suppose Xiaoming reads an average of x pages every day: The total number of pages read in 3 days is:3 × 156 = 458 pages Look at the remaining pages:12 pages Therefore, the equation could be written: 458 - 12 = x + 156 Solve the equation: x = 220 Therefore, Xiao Ming reads an average of 220 pages a day.

Xiao Ming read a 480-page storybook and read page A every day for 12 days. How many pages are left?

1 answer
2024-09-16 11:02

When Xiao Ming read page A of the storybook every day for 12 days, he had read a total of 12 × page A. Therefore, when Xiaoming reads a 480-page storybook, he still has 480 - 12 × a pages left. To calculate the remaining pages, he needed to know how many pages Xiao Ming read in the end and how many pages he read every day. If we assume that the last page that Xiao Ming read was 480 pages and he reads page a every day, then we can write the following equation: 480 - 12 × a = Remaining pages By solving this equation, we can get: Remaining pages = 480 - 12 × a = 480 - 12a Therefore, after reading page A for 12 days, Xiao Ming still had 480 - 12A pages left.

Xiao Ming reads 12 pages of the storybook every day. If he has read for a day, how many pages has he read? How many pages were left?

1 answer
2024-09-16 10:50

Xiao Ming had already read page 12a, and there were still pages 108- 12a left.😋I recommend a novel about transmigration and cultivation to you. It's called "The Mountain Man Has His Own Plan." This book had the elements of Xianxia and Cultivation. It told the story of the protagonist Fang Xin transmigrating to the game world, establishing a country in the game, awakening the inheritance, and growing stronger step by step. I hope you like this fairy's recommendation. Muah ~😗

Zhang Ming was reading a storybook. He read 30 pages a day. After three days, there were still 8 pages of the book left. How many pages were there in this storybook?

1 answer
2024-09-16 18:02

Let's say this storybook has a total of $x$pages. According to the topic, 30 pages per day meant $30/div2 = 15$per hour. Zhang Ming read $15$pages per hour in $3$days so he read $3/30 = 90$pages in total. The remaining pages are $8/5 of the book, so there are: $$ 90 - \frac{8}{5} = \frac{16}{5} $$ Because the question requires the number of pages in the book, you need to multiply this result by $x$pages to get: $$ x \times \frac{16}{5} = \frac{16}{5} \times x = 96 $$ Solve this equation to get $x = 56$. So this story book had a total of $56$pages.

Xiao Dong read a storybook. He read 68 pages in the first four days and 72 pages in the next three days. How many pages does Xiao Dong read on average every day?

1 answer
2024-09-14 19:46

Assuming that the total number of pages Xiao Dong read every day was constant, then the average number of pages he read every day could be calculated by calculating the total number of pages in the first 4 days and the last 3 days. The total number of pages read in the first four days was 68, so Xiao Dong had read a total of 68 pages in these four days. The total number of pages he read in the next three days was 72 pages, so Xiao Dong read a total of 72 pages in these three days. Therefore, Xiao Dong had read a total of 68 + 72 + 10 + 2 = 190 pages in these 8 days. Divide the total number of pages by the total number of pages you read every day to get the answer to how many pages Xiao Dong reads on average every day: 190/8 = 225 pages The answer was 225 pages because Xiao Dong read an average of 225 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?

1 answer
2024-09-14 19:45

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.

A book has 95 pages. Xiao Ming spent 4 days to read 32 pages, and the rest had to be finished in a week. How many pages does he read on average every day?

1 answer
2024-09-14 20:05

Xiao Ming spent 4 days to finish reading 32 pages, so the number of pages he read every day was: 32 pages/4 days = 8 pages/day Since the remaining book had 95 pages, he had to finish it within a week. 95 pages/8 pages/day = 12 days Therefore, Xiao Ming needed to read 12 pages a day to finish the remaining 95 pages in a week.

Xiao Ming reads a book, and after 7 days, there is still 1/3 of the book left. In the next five days, he would read 60 pages in total. How many pages did Xiao Ming read on average every day?

1 answer
2024-09-13 12:39

After reading a book for 7 days, Xiao Ming still had 1/3 of the book left. This meant that he had read 1/3 of the book and the remaining 2/3 of the book needed to read 2/3 × 7 = 4/3 days. Reading a total of 60 pages in the next 5 days meant that Xiaoming had read (60/5) = 12 pages in these 5 days. Therefore, Xiaoming read an average of 12 pages a day.

Ming Peng had been reading a 520-page storybook for seven days. There were still 170 pages left. How many pages did he read on average every day?

1 answer
2024-09-16 10:46

Ming Peng had been reading for seven days and had 170 pages left. Therefore, the average number of pages he read every day was: 170 pages/7 days = 24 pages/day Therefore, he read an average of 24 pages a day.

Xiao Hong read 170 pages in 12 days, Xiao Ming read 240 pages in 17 days, Xiao Qiang read 27 or 28 pages, 300 pages. Who can read fast?

1 answer
2024-09-03 18:36

According to the knowledge of online literature enthusiasts, it was difficult to come up with a conclusion as to who read faster because everyone's progress was different at different times. Xiao Hong only reads 170 pages a day while Xiao Ming only reads 240 pages a day, which means that Xiao Hong is reading faster than Xiao Ming. However, Little Red only had 12 days while Little Ming had 17 days. Therefore, Little Ming had a longer reading time and progress. In addition, Cockroach read 300 pages between the ages of 27 and 8, which means that his speed may be faster than Xiao Hong and Xiao Ming. Therefore, it was impossible to simply answer the question of who read faster.

Xiao Ming was reading a storybook. He had already read 40% of the book, and there were still 90 pages left. How many pages does this book have?

1 answer
2024-09-16 10:55

This book has a total of $90+40%<<20>>= 1620$pages. Of which, 40% of the pages were already read by Xiao Ming, and the remaining 90 +80=170 pages were unread.

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