For how many positive integer values of is a factor of ? (A) 22 (B) 23 (C) 24 (D) 25 (E) 26 This problem is a variation on a theme. You should take a look at Factors in …
Using Venn Diagrams to Solve a Combinatorics Problem
Taking the right approach is the key to most GMAT and GRE quant problems, and combinatorics problems are no different. Almost all combinatorics problems can be solved with a single tool that can be …
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