In 425 g of water was dissolved 75 g of crystalline soda. Determine the percentage of soda in the solution.

Decision:
75 / (425 + 75) = 0.15 (15%)
Answer: 15%



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.