Question

7. How many 4 digit number can be made using 0 -7 with no repeated digits allowed?

A) 5040 B) 4536 C) 2688 D) 1470

Answer 1

I am getting the answer as 1680, which is none of the choices. Doesn't make sense.

Answer 2

@whpalmer4

Answer 3

Number of digits from 0 to 7 = 8.

Ways: 8 x 7 x 6 x 5 (note the subsequent numbers are -1 cos theres no repeat)

Got 1680 also

Answer 4

Weird no? This is for my elearning Unit 5 test and the answer I am getting is apparently not a choice lol...

Answer 5

what are the choices?

Answer 6

I already listed them lol.

Answer 7

sorry, so you did, that had already scrolled out of sight!

Answer 8

Is there something I don't see? 0.0

Answer 9

Yes, I think there is :-) 0
4 digit numbers don't get to start with 0. That means there are 7 choices for the first digit, 7 for the second, 6 for the third, 5 for the fourth = 7*7*6*5 = another one of your answer choices

Answer 10

LLLLLLLLLLLLLLLLLLLLLLAAAAAAAAWLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL

Answer 11

i don't like you anymore @whpalmer4 u make me feel dumb.

Answer 12

I thought it was funny that you said "Is there something I don't see? 0.0" :-)

Answer 13

the answer was right there on either side of your nose :-)

Answer 14

haha

Answer 15

Well thanks.

Answer 16

i feel stupid forever though

Answer 17

eh, don't sweat it, I get paid for spotting weird corner cases like this.

Answer 18

hehe