How many different four letter words can be formed (the words need not be meaningful) using the letters of the word MEDQTERRANEAN such that the first letter is E and the last letter is R?	Choose the correct choice from the following
A) 34
B) 45
C) 46
D) 49
E) 56
Therefore, we have to find two more letters from the remaining 11 letters.   Of the 11 letters, there are 2 Ns, 2Es and 2As and one each of the remaining 5 letters.   The second and third positions can either have two different letters or can have both as same letters.   Case 1: When the two letters are different   One has to choose two different letters from the 8 available different choices.   This can be done in   8 * 7= 
<gadget id="calculator">  8 * 7</gadget>
<output>56</output>
56 ways.   56
<result>E</result>
How many different four letter words can be formed (the words need not be meaningful) using the letters of the word MEDQTERRANEAN such that the first letter is E and the last letter is R?