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 Dong read 68 pages in the first 4 days and 72 pages in the next 3 days, so the total number of pages in the book was 68+72+4*10=190 pages. How many pages does Xiao Dong read on average every day? How many days did Xiao Dong watch it? (Note: You need to add the first 4 days and the last 3 days to get the total number of days.) Xiao Dong reads an average number of pages per day = total pages/total days =190 pages/14 days =14 pages/day Therefore, Xiao Dong read an average of 14 pages a day. Therefore, he chose option A.
Xiao Dong read a storybook for a total of 68 pages in the first 4 days and 72 pages in the next 3 days, so the total number of pages read was:68+72+4*3=191 pages. How many pages does Xiao Dong read on average every day? It took Xiao Dong seven days to finish reading the book, so the average number of pages Xiao Dong read every day was 191/7=25 pages. Therefore, the correct calculation was page 25. The statement on page 20 of Item A was wrong. Page 17 of Item B and page 18 of Item C were all correct. Item D, page 26, is incorrect.
Dong Dong spent a week reading a storybook. He read 150 pages in the first three days and 200 pages in the next four days. We can use the formula of "A total of X pages in the previous N days, an average of Y pages per day" to calculate how many pages Dongdong reads on average per day: 1 Calculating the total number of pages in the first three days:150 pages/3 days = 50 pages/day 2. Total pages in the next four days:200 pages/4 days = 50 pages/day 3. Calculating the average number of pages per day: Total pages/days = 50 pages/day/7 days = 75 pages/day Therefore, Dongdong read an average of 75 pages a 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.
Xiao Le read an average of 18 pages a day.
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.
Dongdong had read a total of 131 pages in the first four days of reading a storybook. 131 pages/ 4 days = 35 pages/day In the next three days, he read 93 pages. 93 pages/ 3 days = 31 pages/day Therefore, the average number of books Dongdong reads every day is: 35 pages/day + 31 pages/day = 66 pages/day Therefore, Dongdong had to read an average of 66 pages a day before he finished reading the book.
Suppose the book has a total of x pages, and Chen Ming has read a total of y pages in these seven days: - Chen Ming read 11*3=33 pages in the first three days - In the next three days, Chen Ming read a total of 18*3=54 pages - In seven days, Chen Ming read a total of y*7=497 pages Therefore, Chen Ming read an average of 497/7=74 pages a day in the past seven days.
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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.