Five boys and five girls sit at random in a row. What is the probability that the boys are all sitting together and the girls are all sitting together?

Respuesta :

Answer:

The probability is [tex]\frac{1}{126}[/tex]

Step-by-step explanation:

given number of boys = 5

given number of girls = 5

number of ways the boys can sit [tex](n_b)[/tex] = 5! ways

number of ways the girls can sit [tex](n_g)[/tex]= 5! ways

Total numbers ways they can sit = (5! + 5!) ways = 10! ways

The probability that the boys are all sitting together and the girls are all sitting together;

[tex]=\frac{2*n(b)Xn(g)}{10!}[/tex]

[tex]=\frac{2*5!X5!}{10!}\\\\=\frac{28800}{3628800} =\frac{1}{126}[/tex]