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

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

If seven persons are to be seated in a row, then the probability that two particular persons are seated next to each other is

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

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

In how many ways can 10 persons take seats in a row of 24 fixed seats so that no two persons take consecutive seats.

In how many ways can 10 persons take seats in a row of 24 fixed seats so that no two persons take consecutive seats.

In how many ways can 10 persons take seats in a row of 24 fixed seats so that no two persons take consecutive seats.