The task is to generate the correct answer for a given math problem.
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Question: Problem: how much interest will $ 8,000 earn in 9 months at an annual rate of 6 % ?

Answer: $ 360


Question: Problem: last year elaine spent 20 % of her annual earnings on rent . this year she earned 35 % more than last year and she spent 30 % of her annual earnings on rent . the amount she spent on rent this year is what percent of the amount spent on rent last year ?

Answer: 202.5


Question: Problem: the ratio between the sale price and the cost price of an article is 12 : 7 . what is the ratio between the profit and the cost price of that article ?

Answer:
5 : 7