Question 4063
  y varies directly as x
  
  So {{{y/x}}} = {{{9/12}}}
 if x = 7, then
  {{{9/12}}} = {{{y/7}}}
  By cross multiplication, we get
  12y = 63
  y = {{{63/12}}} = 5{{{1/4}}} = {{{21/4}}}
  by replacing this value of y,
  {{{(21/4)*(1/7)}}}
  = {{{21/28}}}
  = {{{5.25/7}}}
  So  x = 5.25 Answer

  I hope this is clear to you
   
  gsm