The letters of the word EAMCET are permuted at random. The probability that the two E's will never be together, is

The letters of the word SUCCESS are arranged in a row at random. The probability that no two S's may come together is

If the letters of the word PROBABILITY are written down at random in a row, the probability that two B-s are together is-

The letters of the word VICTORY are arranged in a row at random. The probability that no two vowels may come together is

The letters of the word MISSISSIPI are arranged in a row at random . The probability that all S's come together is

The letters of the word "EAMCET" are arranged in all possible ways. The probability that no two vowels come together in that word is