The ratio of milk and water in three samples is 1 ∶ 3, 3 ∶ 5 and 11 ∶ 5. A mixture containing equal quantities of all three samples is made. What will be the ratio of milk and water in the new mixture?

The ratio of milk and water in three samples is 1 ∶ 3, 3 ∶ 5 and 1

1.	The ratio of milk and water in three samples is 1 ∶ 3, 3 ∶ 5 and 11 ∶ 5. A mixture containing equal quantities of all three samples is made. What will be the ratio of milk and water in the new mixture?
A.	7 ∶ 9
B.	5 ∶ 7
C.	15 ∶ 13
D.	9 ∶ 11
Answer» B. 5 ∶ 7