Question 192636
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By Ratio & Proportion:


Let "x" = number of hours in reading 225 pages.


So,
{{{90pages/2.5hrs=225pages/red(x)}}}
Cross multiply
{{{red(x)*90=2.5*225=562.50hrs}}}
{{{red(x)cross(90)/cross(90)=cross(562.50)6.25/cross(90)}}}
{{{red(x=6.25hrs)}}}, or 6 hrs & 15 minutes (Answer)



Thank you,
Jojo</font>