In how many ways can the letters of the word EIGHT be arranged using only four of the letters at a time?

Answer 1

combinations of 5 letters taken four at a time

= 5!/[4! (5-4)!] = 5

Answer 2

The letters are to be arranged, so order matters.

number of ways = 5x4x3x2 = 120

Answer 3

120

Answer 4

48