Question 4567
 All possible words: 7!/2! = 7*6!/2 (since there are 2 E's)
 If TN together TN or NT as a letter, the other five are EE,I,G,R
 so there are 2*6!/2! = 6! = 720

 Hence,m1 = 7*6!/2 - 720 = 720(7/2 -1) = 720 (5/2) = 1800
   
 m2 = 5!/2 = 60 (why?)

 So, m1/m2 = 30


 Kenny