Concept explainers
Exercises 37-44 can be solved using combinations even though the problem statements will not always include the word "combination" or "subset."
Arranging New Home Models Tyler (the contractor) is to build six homes on a block in a new subdivision, using two different models: standard and deluxe. (All standard model homes are the same, and all deluxe model homes are the same.)
(a) How many different choices does Tyler have in positioning the six houses if he decides to build three standard and three deluxe models?
(b) If Tyler builds two deluxes and four standards, how many different positionings can he use?
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