There are 5 boys and 3 girls. In how many ways can they be seated in a row so that al the three girls do not sit together

There are 5 boys and 3 girls. In how many ways can they be seatd in a row so that all the three girls do not sit together?

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 4 boys and 3 girls be seated in a row so that no two girls are together ?

In how many wys can 4 boys and 3 girls be seated ina row so that no two girls are together?

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

In how many ways can 7 boys and 2 girls be seated in a row so that two giirls are together ?

In how many ways can 7 boys and 2 girls be seated in a row so that two giirls are together ?

In how many ways 5 boys and 3 girls be seated in a row so that no tow girls are together?

If there are 7 boys and 5 girls in a class,then in how many ways they can be seated in a row such that (i) No two girls sit together? (ii) All the girls never sit together?