ShmoopTube

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Okay, let's get down to the shmoopy question...

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To make a combo meal at a fast-food , restaurant, a person can order

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two different kinds of chicken , sandwiches: grilled or crispy.

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She can also order three kinds of sides: fries, onion rings or a mini-salad.

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Finally, for drinks, she has a choice of cola, orange-flavored soda, lemonade, or root beer.

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Which of the following tree diagrams represents all of a customer's

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possible choices for ordering a complete meal?

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Here are the potential answers:

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OK lottttts of real estate to cover here.

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More than anything, this is a logic problem.

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Let's suppose we've decided on a grilled chicken sandwich and a side of fries.

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Now your only decision to make is what to drink. Sadly, Red Bull isn't an option.

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You can choose from four drink options.

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Okay, so there are 4 combos right there.

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But say you have a potato allergy and want the side of onion rings instead.

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You have the same 4 drink options, so that's 4 more combos.

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And finally, if you're looking to cut calories, you could have gone with the mini-salad...

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4 more combos. So basically, if you take your chicken grilled,

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there are 12 combinations. If, on the other hand, you prefer a little

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crunch with your cluck... ...you'll go through all the same steps

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and come up with 12 more combinations... ...or 24 total.

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So we need a tree that will represent all 24 of those combinations.

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The correct tree should start off with two branches: one representing grilled chicken

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and the other representing crispy chicken.

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From each of these branches, there should

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be three more for each of the sides, and then four more from each of THOSE for the drinks.

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The only tree here that matches this description is the tree in (C).

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Although, the question is a bit deceiving, as we all know chickens don't grow on trees.

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