Permutation and Combination

Divya Shah  (1)
  • 3 Aug '22

The permutation formula used to solve this question doesn't make sense to me. I've attached the solution given along with the question.

Can someone help me understand what is it that I'm exactly missing out on?
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Sai Karthick  (50)
  • 28 Aug '22

Hey Juddah, even though Permutation and combinations has a less number of questions in the exam, you will be quick to answer them once you are clear with the concepts. The time taken will be less comparing to other chapters as you can directly apply the concepts. This might get you 3 to 6 marks which is a considerable mark to boost your percentile. So we would recommend you go through the lesson videos and practice this chapter.

Juddah M  (2)
  • 27 Aug '22

Across the CAT past papers, the weightage for Permutation and Combinations questions are less when compared to other chapters like Arithmetic, Algebra and Geometry. How important is permutation and combination since CAT has less number of questions from this chapter?

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