27. In a particular family of 8 children, there are 5 boys and 3 girls. A photographer is hired to take a series of family pictures of the children only. For one of the pictures, the photographer selects 2 boys and 1 girl and arranges them in a row. The number of different ways of arranging the three children for this picture is А. 30 В. 60 С. D. 360 180
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.
![27.
In a particular family of 8 children, there are 5 boys and 3 girls. A photographer is hired to take a series of family
pictures of the children only. For one of the pictures, the photographer selects 2 boys and 1 girl and arranges them
in a row.
The number of different ways of arranging the three children for this picture is
А.
30
В. 60
С.
D. 360
180](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fea3e54e2-bbe9-421e-82f8-d533a58ad7c2%2Fe2f981e5-71b6-45b3-bbad-20ac811780d2%2Fg7ty9on_processed.jpeg&w=3840&q=75)
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