100 kg rice is sold partially at 10% profit. Remaining is sold at 20% profit. If the total profit on this selling is 12%, then what quantity of rice he sold at 20%
- 30 kg
- 20kg
- 40kg
- 50kg
- 60kg
- Explanation:
Let the quantity of rice sold at 20% profit = x kg
∴Rice sold at 10% profit = (100-x) kg
According to question,
(100-x)×110/100+x×120/100 = 100×112/100
11000-110x+120x=11200
10x=200
x=20kg