How much water should be added to 40 kilograms of 10% solution to get a 5% solution?
| August 28, 2021 | education
The unknown quantity of kilograms of water that must be added to obtain a 5% solution is determined by the conditional variable “Y”.
Based on the conditions of the problem, we get the following equation: (40 x 10/100) / (40 + Y) = 5/100.
The outcome of the calculation looks like this (40/10) / (40 + Y) = 1/20 or 4 / (40 + Y) = 1/20 or 4 x 20 = 40 + Y or Y = 80 – 40 = 40 kilograms water.
Answer: add 40 kilograms of water to the solution.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.
