Question
Mathematics Question on Mixtures and Allegations
A chemist has 10 litres of a solution that is 10 per cent nitric acid by volume. He wants to dilute the solution to 4 per cent strength by adding water. How many litres of water must he add?
A
5
B
20
C
18
D
25
Answer
5
Explanation
Solution
The correct option is (A) : 5