SRL Archive - Mathematics

Combinations and arrangements


onilika

2011-11-14 10:43:19

Consider the following problem:

Using the five digits of 41123, how many numbers can be formed?


5C 2 × 3! and 5A3 are two correct answers.

In a small composition, explain the reasoning that led to each of these responses.


Can someone help with this problem? :confused: