How many different four letter words can be formed (the words need not be meaningful using the letters of the word "MEDITERRANEAN" such that the first letter is E and the last letter is R?
A). 59
B). 56
C). 64
D). 55
2. 12 people at a party shake hands once with everyone else in the room.How many handshakes took place?
3. Out of 7 consonants and 4 vowels, how many words of 3 consonants and 2 vowels can be formed?
5. In how many ways can 5 man draw water from 5 taps if no tap can be used more than once?