Question

how many three digit numbers can you make by arranging the numbers 7,9,6,2,4?

Answer 1

5! =120

Answer 2

if repetition of digits is not allowed, this is a permutation problem with n = 5 and r = 3.

Answer 3

@hieuvo only three of five digits will be used, not all of them

Answer 4

thanks

Answer 5

oh, my bad