a merchant has 144kg of sugar sold at 3% loss and rest at 9% profit.He gains 5% on whole.what is the quantity of sugar sold at 3% loss.

• 48 kg.
  
  Let x kg. of sugar is sold at 3% loss and (144-x) kg at 9% profit, then
  x*(97/100) + (144-x)*(109/100)=144*(105/100)
  => 97x + 15696 - 109x = 15120
  => 12x = 576
  => x=48
• 7 years agoHelpfull: Yes(0) No(0)