Mary opened a book. The product of the 2 page numbers she was facing was 1640. Write down the sum of the 2 page numbers.
(A) 80
(B) 82
(C) 83
(D) 81
Answers
ANSWER
After you open a book, you notice that the product of the two page numbers on the facing pages is 650. What are the two page numbers?
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26 Answers
Franklin Veaux, part-time mad scientist
Answered February 21, 2019 · Upvoted by Michael Jørgensen, PhD in mathematics and Paul K. Young, Former PhD candidate in Mathematics · Author has 33.6K answers and 380.6M answer views
This can never happen.
The numbers 25 and 26 multiplied together equal 650. But in a standard book, pages 25 and and 26 will never appear on a spread together.
Go get a book. Any book. It doesn’t matter which. Open it to a random page. Look at the page numbers.
In standard book binding, all page spreads have the even-numbered page on the left and the odd-numbered page on the right. So 24–25 would be a spread, and 26–27 would be a spread. There will never be a two-page spread numbered 25–26.
This is because when you open a bound book (or magazine or anything), page 1 is the first page on the right after the book is opened. When you turn to the next page, you arrive at the first spread, which is made up of pages 2–3.
It’s a trick question. You can’t have a two-page spread whose page numbers multiply to 650.