1. Soft Skills Courses
  2. PMT-101
  3. Unit-7
unit-7-permutations-and-combinations

Unit-7 Permutations and Combinations

In this unit you will study about the Multiplication principle, permutations, combinations and Binomial Theorem.

Suppose you have five different presents and you want to distribute them to 3 children. In how many ways can you do it?





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Learning Pundits Content Team

Written on Apr 23, 2019 12:21:54 PM

This is the number of ways of arranging 3 out of 5 objects. So, this can be done in P(5, 3) ways. Here, n = 5, r = 3 and n − r + 1 = 5 − 3 + 1 = 3. Hence, P(5, 3) = 5 × 4 × 3 = 60. So, the presents can be distributed in 60 ways.