Six sweaters amount to $30 x 6 = $<<30*6=180>>180.
Six scarfs amount to $20 x 6 = $<<20*6=120>>120.
So, Maria will pay a total of $180 + $120 = $<<180+120=300>>300.
Thus, she will be left with $500 - $300 = $<<500-300=200>>200 in her savings.
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