A store is selling two mixtures of coffee beans in one- pound bags. First mixture has 12ounces of Sumatra combined with 4 ounces of Celebes Kalossi, and costs $42. The second mixture has 4 ounces of Sumatra and 12 ounces of Celebes Kalossi, and costs $30. How much does one ounce of Sumatra and one ounce of Celebes Kalossi cost? Which answer is correct?
1) $1.50 for Sumatra and $3.00 for Celebes Kalossi.
2) There is no solution.
3) $2.40 for Sumatra and $3.00 for Celebes Kalossi.
4):$3.00 for Sumatra and $1.50 for Celebes Kalossi.