Question

5 boys and 5 girls sit in a row at random. what is the probability that all the girls sit together

Answer 1

The probability of sitting all tje girls together are
P=5÷5
=1

Answer 2

When the girls sit together, all 5 girls can be grouped together and regarded as a single group. Hence we have 5 boys and 1 group of girls = 6 peopleHence, number of arrangements = 6!.Now these 5 girls can be arranged among themselves = 5!.The required probability = (5!.6!) /11!