A shop keeper purchase 10 kg of rice and 20 kg of sugar at Rs. 75 and Rs. 85 per kg respectively. On selling, he gained 20% on rice and 10% on sugar. What was the total sale price?
From the given data,
Cost price of 10 kg of rice = 10 × 75 = Rs. 750
Cost price of 20 kg of sugar = 20 × 85 = Rs. 1700
Given that profit for rice is 20% and profit for sugar is 10%
We know that profit = Cost price × profit% /100 = 750 × 20/100 = Rs. 150
⇒ Selling Price of rice = cost price of rice + profit on rice = 150 + 750 = Rs. 900
Also for profit 10% for sugar
⇒ Profit on sugar = 1700 × 10/100 = Rs. 170
⇒ Selling Price of sugar = Cost price of sugar + profit on sugar = 1700 + 170 = Rs. 1870
∴ Total sale = SP of rice + SP of sugar = 900 + 1870 = Rs. 2770