In hw many ways can 15 I.Sc nd 12 BSc. Candidtes be arranged in a line so that no tow B.Sc. Candidates may occupy consecutive positions?

In how many ways can 16 rupees and 12 paise coins be arranged in a ine so that no two paise coins may occupy consective positions?

In how many ways can 8 students be arranged in (i) a line, (ii) a circle?

In how many ways can 7I. A and I.Sc. Students be seated in a row so that no tow f the I.Sc students may sit together?

In how many ways can 6 persons be arranged in (i) a line, (ii) a circle?

In how many ways 8 men can be arranged (i) in a line? (ii) on a round table?

In how many wys casn the letters of the word INTERMEDIATE be arranged among themselves so that no two vowels may occupy consecutive places?

In how many ways can the letters of the word FAILURE be arranged so that the consonants may occupy only odd positions?