5 kg of superior quality rice is mixed with 25 kg of inferior quality rice. The price of superior quality and inferior quality rice is Rs.18/kg and Rs. 12/kg respectively. The average price in Rs. per kg of the mixture is:
Answer & explanation
Correct answer: option 3
Total price of superior quality sugar =5×18=Rs90
Total price of inferior quality sugar =25×12=Rs300
Total price of mix =90+300=390
Total mix quantity=5+25=30kg
Average price = \(\frac{390}{30}\) = 13