The left and right page numbers of an open book are two consecutive integers whose sum is 517. find these page numbers.

Let the required page numbers are x and ( x + 1 ) ,

Given that the sum of page numbers is 517

According to the question :

= > x + ( x + 1 ) = 517

= > x + x + 1 = 517

= > 2x = 517 - 1

= > 2x = 516



= > x = 258

Therefore,
Page numbers are ( x = 258 ) and ( x + 1 = 258 + 1 = 259 )