Question 1183921


{{{a:b=2:5}}} =>{{{a=2b/5}}}
{{{a:c=3:7}}}=>{{{a=3c/7}}}

What is {{{c:b}}}?

{{{2b/5=3c/7}}}
{{{14b=15c}}}
{{{14/15=c/b}}}

or
{{{c:b=14:15}}}


answer: B. {{{14:15}}}