Question 1184105

let the total number of cards be {{{x}}} 
 
if Javier took {{{(4/11)x}}} of the cards while Kumar took  {{{(4/11)x+9}}} 

{{{x=(4/11)x+(4/11)x+9}}} .......both sides multiply by {{{11}}}

{{{11x=4x+4x+99}}} 
{{{11x=8x+99}}} 
{{{11x-8x=99}}} 
{{{3x=99}}} 
{{{highlight(x=33)}}} => {{{highlight(33)}}} cards were there at first 

=>Javier took {{{(4/11)33=12}}}
=> Kumar took  {{{(4/11)33+9=21}}}