Find the ratio in which rice at Rs.10.0 a kg be mixed with rice at Rs.5.70 a kg to produce a mixture worth Rs.6.30 a kg? Choose the most appropriate option.
A) 1 : 3
B) 2 : 3
C) 3 : 5
D) 4 : 5
E) None of these
Solution   Required ratio = 60 : 100 = 3 : 5   Answer 3 : 5
<result>C</result>
Find the ratio in which rice at Rs.10.0 a kg be mixed with rice at Rs.5.70 a kg to produce a mixture worth Rs.6.30 a kg?