In what ratio must the rice at Rs.3.20/kg be combined with rice at Rs.2.90/kg so that the combination becomes of worth Rs.3.08/kg ?  Choose one:  A) 3:2  B) 5:3  C) 7:3  D) 7:5  E) 8:5
Explanation :   Given   i. C.P of a kg quantity of I kind (p) = 3.20   ii. C.P of a kg quantity of II kind (p) = 2.90   iii. Mean rice price (p) = 3.08   iv. d – m = 3.08 – 2.90 = 0.18   v. m – c = 3.20 – 3.08 = 0.12   Therefore, Needed ratio = 0.18 : 0.12 = 3 : 2   3:2nswer : 3:2
<result>A</result>
In what ratio must the rice at Rs.3.20/kg be combined with rice at Rs.2.90/kg so that the combination becomes of worth Rs.3.08/kg ?