A person bought a certain quantity of rice at the rate of Rs. 150/quintal. 10% of the rice was spoiled. At what rate(per quintal) should he sell the remaining rice to earn 20% profit.
Choose the correct choice.
A) Rs. 180 B) Rs. 200 C) Rs. 210 D) Rs. 220 E) NONE
Solution: Suppose he buy 1 quintal of Rice in Rs.150.   10% is spoiled so he now have to sell of 90 kg remaining)   .But he has to make a profit of 20%,so he will sell   90kg for Rs. 180   This means his selling price is Rs. 200 per quintal.   Answer: Option Rs. 200
<result>B</result>
A person bought a certain quantity of rice at the rate of Rs. 150/quintal. 10% of the rice was spoiled. At what rate(per quintal) should he sell the remaining rice to earn 20% profit.