In what ratio must rice of Rs.32per kg be mixed with rice of Rs.42 per kg so that cost of mixture is Rs.20 per kg? Choose the most appropriate option
A) 13:6  B) 13:5  C) 11:6  D) 11:5  E) 12:5
(20-42)/(32-20)=22/12=11:6   ANSWER:11:6
<result>C</result>
In what ratio must rice of Rs.32per kg be mixed with rice of Rs.42 per kg so that cost of mixture is Rs.20 per kg?