Question

John is getting his ATM card activated. He must select a password containing 4 nonzero digits to be able to use the card. How many passwords are allowed if no digit may be used more than once?
a.
3,024
c.
15,120
b.
5,040
d.
30,240

Answer 1

@friendzone

Answer 2

@prettyprincess1

Answer 3

@kels200105

Answer 4

hold on checking now

Answer 5

ok

Answer 6

its an obvious answer! Lol. It's A. :) A has none of the same numbers.

Answer 7

Not so obvious, those answers was not the password, but the number of password choices, the wording did not preclude two digits being the same in the total number of passwords.