vimal mixes 80 kg of sugar worth Rs 6.75 per kg with 120 kg of sugar worth Rs 8 per kg.At what rate shall he sell the mixture to gain 20%?

• let c1 and c2 be the cost of two types of sugar and q1 & q2 be their quantities.
  c1=6.75 , q1=80 ,c2=8 ,q2=120
  cost of the mixture=c=(c1q1+c2q2)/q1+q2
  c=7.5
  to have a gain of 20% the cost of the mixed sugar will become
  7.5+1.5=9
  therefore vimal will sell the mixed sugar @ Rs.9/kg to gain 20%.
  
• 11 years agoHelpfull: Yes(6) No(1)