In what ratio must be a grocer mix two varities of tea worth Rs.60 a kg and Rs.65 a Kg so that by selling the mixture at Rs.68.20 a Kg he may gain 10%?
Answers.
A) 3 : 4  B) 3 : 2  C) 3 : 5  D) 4 : 5  E) None
Solution   S.P. of 1 kg of the mixture = Rs. 68.20, Gain = 10 %   C.P. of 1 kg of the mixture = Rs. (100 / 110 x 68.20) = Rs. 62.   Required ratio = 3 : 2.   Answer 3 : 2
<result>B</result>
In what ratio must be a grocer mix two varities of tea worth Rs.60 a kg and Rs.65 a Kg so that by selling the mixture at Rs.68.20 a Kg he may gain 10%?