1.A club with 15 members will choose 3 of them to attend a meeting. In how many different ways can this be done?_______________CCrn
Permutations and Combinations
If there are 5 dishes, they can be relished in any order at a time. In permutation, it should be in a particular order. In combination, the order does not matter. Take 3 letters a, b, and c. The possible ways of pairing any two letters are ab, bc, ac, ba, cb and ca. It is in a particular order. So, this can be called the permutation of a, b, and c. But if the order does not matter then ab is the same as ba. Similarly, bc is the same as cb and ac is the same as ca. Here the list has ab, bc, and ac alone. This can be called the combination of a, b, and c.
Counting Theory
The fundamental counting principle is a rule that is used to count the total number of possible outcomes in a given situation.
1.A club with 15 members will choose 3 of them to attend a meeting. In how many different ways can this be done?_______________CCrn
Given that there are total 15 members and we will choose 3 of them.
Since we will pick 3 persons in a group so the arrangement will not matter. So we will use the combination method.
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