Question 343907
Let {{{x}}} = number of pages in 1st book
{{{2400}}} = total pages in both books
{{{2400 - x}}} = number of pages in 2nd book
given:
{{{x/(2400 - x) = 3/5}}}
Multiply both sides by {{{5*(2400 - x)}}
{{{5x = 3*(2400 - x)}}}
{{{5x = 7200 - 3x}}}
{{{8x = 7200}}}
{{{x = 900}}}
{{{2400 - x = 2400 - 900}}}
{{{2400 - 900 = 1500}}}
The books have 900 pages and 1500 pages