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Home > CCG > Chapter 9 > Lesson 9.1.4 > Problem 9-51


An international charity builds homes for disaster victims. Often the materials are donated. The charity recently built homes. % used granite for the kitchen countertops, while the rest used porcelain tile. of the homes used red oak for the wooden kitchen floor, used white oak, and used maple. If a disaster victim is randomly assigned to a home, what is the probability (in percent) of getting an oak floor with granite countertops?  

Try making an area model or tree diagram.

Both counts and percentages are given in the problem. Try making an area model like the one below where the totals are recorded as both counts and percentages.

red oak

white oak