Daphney buys 5 kg of potatoes at the supermarket. If 2 kg of potatoes costs $6, how much will she pay?
The price per kilogram of potatoes is $6 / 2 = $<<6/2=3>>3.
To buy 5 kg of potatoes, she will have to pay 5 * $3 = $<<5*3=15>>15.
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