In what ratio must tea at Rs.60 per Kg be mixed with tea at Rs.70 per Kg so that the mixture must be worth Rs.67.5 per Kg?
Pick
A) 3 : 1  B) 3 : 2  C) 4 : 3  D) 1 : 3  E) None
Required ratio = 250 : 750 = 1 : 3   Answer 1 : 3
<result>D</result>
In what ratio must tea at Rs.60 per Kg be mixed with tea at Rs.70 per Kg so that the mixture must be worth Rs.67.5 per Kg?