In what ratio must a grocer mix two varieties 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%?

In what ratio must a grocer mix two varieties of tea worth Rs. 60 a kg

1.	In what ratio must a grocer mix two varieties 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%?
A.	0.127777777777778
B.	0.126388888888889
C.	0.170138888888889
D.	0.128472222222222
Answer» C. 0.170138888888889