Question

 

The left and right page numbers of an open book are two consecutive integers whose sum is 265.  Find these page numbers.

Answer 1

Let the left page number be $x.$

Hence the right hand side will be $x+1.$

This is because the numbers are consecutive.

Therefore

 $x+x+1=265$

$2x+1=265$

$2x=264$

$x=132$

The page numbers are 132 and 133