then sum of the page numbers on the facing pages of a book is 89. what are the page number? number on the left page is________and the number on the right page is_____.

Answer 1

We know that page numbers are consecutive. two consecutive numbers, mathematically are x and x+1.

So two facing page numbers = 89. x + x + 1 = 89. 2x + 1 = 89

subtracting one from each, 2x = 88

divide by 2 x = 44

the facing page, x + 1 = 45.

Two page numbers, 44 and 45 are facing each other and add up to 89.

Of course, the left page is 44 and the right page must be 45.