below the basic question of permutation:
given that 4 letters are chosen from the word PAYMENT,find the number of arrangement that start with a vowel
ans: 2P1 x 6P3 = 240
my ans: 120
any guide?
tq for your post, but i hope u can commnet my ans attached as below:
http://img839.imageshack.us/img839/7452/99010889.jpg