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9 December, 02:38

Craig stops at a gas station to fill his tank. He must choose between full-service and self-service and between regular, mid grade and premium gasoline. How many possible combinations are there?

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  1. 9 December, 02:59
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    6

    Step-by-step explanation:

    There are 2 service choices and 3 grade choices for each, a total of 2*3 = 6 choices.
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