The solution is: Let X = left page and X+1 = right page. X + (X+1) = 89. Solve for X; X = 44 which is left page and right page is X+1 = 45.
pages 56 and 57
In a book, the left page number is always odd and the right page number is even. If the sum of the two facing pages is 445, we can set up the equation: (x + (x + 1) = 445), where (x) is the left page number. Solving for (x) gives us (2x + 1 = 445), leading to (2x = 444) and (x = 222). Therefore, the left page is 222, and the right page is 223.
If one of the pages is numbered p, the other is p+1. So p*(p+1) = 420 That is, p2 + p - 420 = 0 which factorises as (p - 20)*(p + 21) = 0 That implies that p = 20 or p = -21. Assuming that pages do not have negative numbers, p = 20 and then the other page is p+1 = 21.
pages 42 and 43 [you take 85 down one, then halve it, and as it's a book obviously one page will have a higher number that the other.]
52 and 53
40 & 41
They are 44 and 45.
The book is opened to pages 26, on the left, and 27, on the right. The product of 26 times 27 is 702.
RECTO
The page numbers would be 166 and 167.
"Cut Numbers" by Kathy Tyers has a total of 368 pages.
Yellow pages for commercial numbers and blue pages for government numbers.
Facing pages are two pages of a book that face each other when you have the book open. It is also called the spread head. If you have a book that you really care for, you would gently open it and press down on the pages to spread the spine in a way that it would less likely break.
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pages 56 and 57
The odd numbered pages are typically on the right side of the book when you open it; the even numbered pages will be on the left.
Let the two facing pages be represented by x and (x+1). Since the product of the page numbers is 1056, we have the equation x(x+1) = 1056. This simplifies to x^2 + x - 1056 = 0. By solving this quadratic equation, we find the page numbers to be 32 and 33.