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GMAT PREP combination question [#permalink]
11 Jan 2007, 15:06
Any clues guys
To furnish a room in a model home, an interior decorator is to select 2 chairs and 2 tables from a collection of chairs and tables in a warehouse that are all different from each other. If there are 5 chairs in the warehoues and if 150 different combinations are possible, how many tables are in the warehouse?