Find the ratio in which rice at Rs.7.20 a kg be mixed with rice at Rs.5.80 a kg to produce a mixture worth Rs.6.30 a kg?	Options.
A) 5 : 9 B) 2 : 3 C) 3 : 4 D) 4 : 5 E) None of these
Solution   Required ratio = 50 : 90 = 5 : 9   5 : 9nswer 5 : 9
<result>A</result>
Find the ratio in which rice at Rs.7.20 a kg be mixed with rice at Rs.5.80 a kg to produce a mixture worth Rs.6.30 a kg?