In what ratio must a mixture of 30% alcohol strength be mixed with that of 50% alcohol strength so as to get a mixture of 45% alcohol strength?

In what ratio must a mixture of 30% alcohol strength be mixed with tha

1.	In what ratio must a mixture of 30% alcohol strength be mixed with that of 50% alcohol strength so as to get a mixture of 45% alcohol strength?
A.	1:2
B.	1:3
C.	2:1
D.	3:1
Answer» C. 2:1