In two types fo stainless steel, the ratio of chromium and steel are 2:11 and 5:21 respectively. In what proportion should the two types be mixed so that the ratio of chromium to steel in the mixed become 7:32?

• let take x from first and y from second
  so chromium from first 2x/13 ans steel 11x/13
  and chromium from second 5y/26 and steel 21y/26..
  so( 2x/13+5y/26)/(11x/13+21y/26)=7:32
  solve x/y=1:2
• 12 years agoHelpfull: Yes(4) No(1)
• a:b::c:d =a+c::b+d =1:1
• 12 years agoHelpfull: Yes(0) No(2)