Having received his weekly allowance, John spent $$\frac{3}{5}$$ of his allowance at the arcade. The next day he spent one third of his remaining allowance at the toy store, and then spent his last $0.80 at the candy store. What is John's weekly allowance?
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A$2.40
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B$3.00
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C$3.20
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D$3.60
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E$4.80
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正确答案: B