Question

The left and right page numbers of an open book are two consecutive integers whose sum is 419. Find the page numbers

Answer 1

Left page = x

Right page = x + 1

$x + (x + 1) = 419$

$2*x + 1 = 419$

$2*x = 418$

$x = 418/2 = 209$

Answer:

Left page = 209,

Right page = 210.