5 sutdents A,B,C,D and E. occupy their seats at random in a bench. Find the probability that the students A and B are not consecutive.

4 boys and 2 girls occupy seats in a row at random. What is the probability that the girls occupy seats side by side?

Two persons are selected at random, from n persons seated in a row (n ge 3) . The probability that the selected persons are not seated consecutively, is equal to

4 boys and 2 girls occupy seats in a row at random. Then the probability that the two girls occupy seats side by side is

6 boys and 6 girls occuppy seats ina row at random.What is the probability that the 6 girls occupy side by side?

6 persons A,B,C,D,E,F are arranged in row. Find the conditional probability that C&D are separated given that A o* B are together.6

There are 7 seats in a row.Three persons take seats at random the probability that the middle seat is always occupied and no two persons are consecutive is

4 boys and 2 girls occupy seats in a row at random. Then, the probability that two girls occupy seats side by side is