In how many ways 4 boys and 3 girls can be seated in a row so that they are alternate.
In how many ways 4 boys and 3 girls can be seated in a row so that they are alternate.
Answer/Solution
144
Steps/Work
Solution: Let the Arrangement be,
B G B G B G B
4 boys can be seated in 4! Ways.
Girl can be seated in 3! Ways.
Required number of ways,
= 4!*3! = 144.
Answer: Option A
B G B G B G B
4 boys can be seated in 4! Ways.
Girl can be seated in 3! Ways.
Required number of ways,
= 4!*3! = 144.
Answer: Option A