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4 October, 07:41

You want to buy some rice. A 7-ounce package costs 2.59. A 12 - ounce package costs $4.56. An 18-ounce package costs 6.30 which package is the Best Buy?

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  1. 4 October, 10:40
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    Type 1 rice:

    7-ounce package costs = 2.59.

    Cost of 1-ounce of Type 1 rice = 2.59/7 = $0.37

    Type 2 rice:

    12-ounce package costs = $4.56

    Cost of 1-ounce Type 2 rice = 4.56/12 = $0.38

    Type 3 rice:

    18-ounce package costs = $ 6.30

    Cost of 1-ounce Type 3 rice = 6.30/18 = $0.35.

    From the above calculations, we can see that the cost of 1-ounce Type 3 rice is lowest. Therefore, 18-ounce package is Best Buy.
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