5kg of rice at rs 6per kg is mixed with 4 kg of rice to get a mixture costing rs. 7 per kg .find the per kg price of the costlier rice.

• 8.25 Rs/Kg.
  
  If per Kg. price of costlier rice=x, then (5*6 + 4*x)/(5+4)=7, On solving, x=8.25
• 8 years agoHelpfull: Yes(0) No(0)