Thirteen persons take their places at a round table. Show that it is five to one against two particular prssons sitting together.

Thirteen persons take their places at a round table. In how many arrangements two particular person sitting together?

Thirteen persons take their places at a round table. In how many ways the 13 persons can be arranged ?

If 20 persons were invited for a party, in how many ways can they and the host be seated at a circular table? In how many of these ways will two particular persons be seated on either side of the host?

There are 20 persons, among whom two are brothers. Find the number of ways in which we can arrange the 20 persons around a round table so that there is exactly one person between the two brothers.

In how many ways can 5 persons sit in a car, two Including the driver In the front seat and 3 in the back seat. If two particular person out of the 5 are to avoid the driver's seat?

10 persons are invited for a party. In how many ways will two particular persons are seated on either side of the host in a circular table?

The number of ways in which 5 ladies and 7 gentlemen can be seated in a round table so that no two ladies sit together is a) (7)/(2)(720)^(2) b) 7(360)^(2) c) 7(720)^(2) d) 720

In terrestrial organisms like birds and reptiles, internal fertilization take place While some aquatic organisms show external fertilisation Name any two organisms showing external fertilization

Given three identical boxes I, II and III, each containing two cọins. In box 1 , both coins are gold coins, in box II, both are silver coins and in the box III, there is one gold and one silver coin. A person chooses a box at random and takes out a coin. If the coin is of gold, what is the probability that the other coin in the box is also of gold?