Question
Mathematics Question on Mixtures and Allegations
How many ml of water must be added to 48 ml of alcohol to make a solution that contains 25% alcohol?
A
48
B
64
C
144
D
192
Answer
144
Explanation
Solution
The correct option is (C): 144
To prepare a 25% solution containing 48 ml of alcohol,
the amount of water added= 48\times \frac{100}{25}$$=144 \space ml