Wang Qiang read a book. For the first four days, he read eight pages a day, and for the next three days, he read a total of 17 pages. How many pages did he read on average every day?Wang Qiang read a book for the first four days, eight pages a day, and then a total of 17 pages for the next three days.
We can split this situation into two parts for analysis:
Reading eight pages a day for the first four days meant that Wang Qiang had already read $4/times 8 = 32$pages in the first four days.
Reading a total of 17 pages in the last 3 days meant that Wang Qiang had read another $3/17 = 54$page in the last 3 days.
Therefore, Wang Qiang read a total of $32+54=86$pages.
Next, we need to calculate how many pages he reads on average every day.
Did he read all the books in the first four days and the last three days together? If that was the case, then the average number of pages he read every day was $86/4+17/3=265+5=315$pages. If not, then the average number of pages he read every day was $86/4-17/3=26-5=21$pages.
Therefore, Wang Qiang read an average of 21 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?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 read a book. On the first day, he read 1/6 of the book, the second day, he read 24 pages, and the third day, he read the total number of pages in the previous two days.Xiao Ming read a book on the first day, he read 1/6 of the whole book, the second day, he read 24 pages, the third day, he read the total number of pages in the previous two days
If he read 24 pages the next day, he would read (24 div6) = 4 pages the next day.
The rest of the books had 5/6 pages. Xiaoming read 1/6 pages on the first day, so he read (5/6 div1/6) = 30 pages on the first day.
Xiao Ming's remaining book had 1/6 pages. The number of pages he read the next day was 4 + 30 = 34.
Xiao Ming's remaining book had 1/6 pages. The number of pages he read on the third day was 34 + 24 = 58.
Therefore, on the third day, Xiao Ming read the entire book's 58 + 6 = 9 pages.
He had read 12 pages on the first day, 6 more pages on the next day, and 48 pages on the last day. How many days had he read?After reading 12 pages on the first day, he read 6 more pages every day than the previous day. On the last day, he read 48 pages. How many days did he read in total?
He had read $12+12 + 12 + 12 + 12 +12+6+48$in total.
Reading 6 more pages a day than the day before, so obviously in the first week, I read $12+12 + 12 + 12 + 12 +12+6+12=55$days.
In the second week, he read $12+12 + 12 + 12 + 12 +12+6+12+12=63$days.
By analogy, we can know that the total amount of reading before the end of the book is $55+63+70+73+80+86+98+48=695$days. Therefore, he read for a total of seven days.