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Course: High school math (India) > Unit 6

Lesson 7: Permutations and Combinations
Math
High school math (India)
Class 11
Permutations and Combinations
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Permutations and Combinations 6.4

Google Classroom

Problem

Luis is packing a bag for vacation. He has 9 unique shirts, but he can only fit 5 in his bag.
How many different groups of 5 shirts can he take?
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3/5
  • a simplified improper fraction, like 7/4
  • a mixed number, like 1 3/4
  • an exact decimal, like 0.75
  • a multiple of pi, like 12 pi or 2/3 pi