In what ratio mental A at Rs.68 per kg be mixed with another metal at Rs.96 per kg so that cost of alloy (mixture) is Rs.80 per kg? Options:
A) 5:8
B) 4:7
C) 4:3
D) 9:5
E) 9:8
(96-80)/(80-68)=16/12=4/3   ANSWER:4:3
<result>C</result>
In what ratio mental A at Rs.68 per kg be mixed with another metal at Rs.96 per kg so that cost of alloy (mixture) is Rs.80 per kg?