as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
system
find the rate at which a substance is diluted when 500 ml of a 0.3 m solution is added to 800 ml of a 0.1 m solution.
user
the rate at which the substance is diluted is 0.2 m.
assistant