In a mixture of 45 litres the ratio of milk to water is 4:1. Additional 23 litres of water is added to the mixture. Find the ratio of milk to water in the resulting mixture.	Select
A) 9 / 8  B) 4 / 1  C) 2 / 3  D) 3 / 4  E) 3 / 2

Rationale: "given that milk / water = 4 x / x and 4 x + x = 45 - - > x = 9 . thus milk = 4 x = 36 liters and water = x = 9 liters . new ratio = 36 / ( 9 + 23 ) = 36 / 32 = 9 / 8 . answer : a ."
Answer: A