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This video teaches you how to solve different types of number counting and arrangement problems as well as geometry related problems using the concept of permutation & combination. Permutation & combinations is applied to a plenty of questions and is asked in a variety of ways in the quantitative ability section of various competitive exams like CAT, CMAT, GMAT & GRE. For classroom coaching visit www.endeavorcareers.com and for online preparation visit www.catgurus.com .