In what ratio must rice at Rs.30 per kg mixed with rice at Rs.10.80 per kg so that the mixture be worth Rs.10per kg Ans	Select the correct option:
A) 8:7  B) 8:8  C) 8:3  D) 8:2  E) 8:1
If 2 ingredients are mixed, then the required ratio is given by, the rule of allegation C.P of a unit quantity of cheaper (c) C.P. of a unit quantity of dearer (d)   Mean Price (m) d-m m-c  Required ratio is cheaper quantity : dearer quantity = (d-m) : (m-c) Answer with Explanation: By the rule of allegation i. C.P of 1 Kg of rice of I kind (p) = 930 ii. C.P of 1 Kg of rice of II kind (p) = 1080 iii. Mean price (p) = 1000 iv. d – m = 1080-1000= 
<gadget id="calculator">1080-1000</gadget>
<output>80</output>
80 v. m – c= 1000 – 930 = 70  Required ratio = 80 : 70   = 8 : 7   8:7nswer:8:7
<result>A</result>
In what ratio must rice at Rs.30 per kg mixed with rice at Rs.10.80 per kg so that the mixture be worth Rs.10per kg Ans