Question 536409
Call the page numbers {{{n}}} and {{{n+1}}}
{{{ n + n + 1 = 285 }}}
{{{ 2n = 285 - 1 }}}
{{{ 2n = 284 }}}
{{{ n = 142 }}}
{{{ n + 1 = 143 }}}
The page numbers are 142 and 143