In how many ways can 5 children be arranged in a line such that : two of them, Ram and Shyam are always together?

In how many ways can 8 students be seated in : a line ?

In how many ways can five children stand in a queue ?

In how many ways can 5 girls be seated in a row so that two girls Ridhi and Sanya are always together?

In how many ways can a tissue grow in size?

In how many ways can 5 girls be seated in a row so that two girls Ridhi and Sanya are never together?

Consider 21 different pearls on a necklace. How many ways can the pearls be placed in on this necklace such that 3 specific pearls always remain together?

In how many ways can 12 things be equally divided : into 2 heaps ?

In how many ways can 6 girls and 4 boys be seated in a row so that no two boys are together?

In how many ways 7 men and 7 women can be seated around a round table such that no two women can sit together