Find the ratio in which rice at Rs. 7.20 a kg be mixed with rice at Rs. 5.70 a kg to produce a mixture worth Rs. 6.30 a kg.
Pick:
A) 1 : 3  B) 2 : 3  C) 3 : 4  D) 4 : 5  E) 5 : 6
Cost of 1 kg of 1st kind 720 p   Cost of 1 kg of 2nd kind 570 p   Mean Price 630 p   Required ratio = 60 : 90 = 2 : 3.   Answer:2 : 3
<result>B</result>
Find the ratio in which rice at Rs. 7.20 a kg be mixed with rice at Rs. 5.70 a kg to produce a mixture worth Rs. 6.30 a kg.