There are 8 seats of which 4 are in row A and 4 are in row B. Find the number of ways of arranging 3 girls and 5 boys in the 8 seats if Ada 8 tempat duduk dengan 4 berada di baris A dan 4 di baris B. Cari bilangan cara mengatur 3 budak perempuan dan 5 budak lelaki di 8 tempat duduk jika i. there is no restriction on seating arrangement. tiada sekatan pada susunan tempat duduk. ii. 3 girls must be in row A.
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.
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