Question

6 boys and 6 girls sit around a table randomly the probability that all the six girls sit together is​

Answer 1

Answer:

D . ∴∴ Number of ways in which 6 boys and 6 girls together sitting in a row =7! 6 girls sitting arrangement =6! ∴∴ Required probability =12!

Answer 2

Answer:

1/ 924

Step-by-step explanation:

make a bundle of the six girls together. first

Now this bundle should be treated as one piece and ahould be arranged between the boys.

as there r 6 boys 6 places will be created in between the boys. that implies the bundle of girls can be placed in these available 6 places only .

also the girls can be arranged among themselves in 6! ways

hence favourable ways is 6 × 6!

and total ways of arranging is (12- 1)! = 11!

hence required probability = 6×6! / 11!

= 1/ 924 .