0:08

Moving to Question 2, Which one of the
following must be true about any acceptable

0:15

Let's take a look here at (A), digit 1
appears in some position before digit 2.

0:21

Well, looking at our previous work from Question 1, we see digit 1 after digit 2 so (A) does

0:30

not follow, doesn't have to be true, so (A)
would be out. Again, coming from Question

0:37

(B), the first digit appears in some position before the third digit. Again, coming directly

0:44

from our previous work in Question 1, we see the third digit appear before the first digit

0:52

or the first digit appear after the third
digit, so again B doesn't have to be true

0:58

coming directly from Question 1.

1:01

(C), the second digit appears in some position before the third digit. And if you notice

1:08

in our 2 scenarios, in scenario 1 digit 2
is second and 3 would come somewhere in 3,

1:17

4 or 5, which clearly means that 2 appears before 3. In scenario 2, 2 is first so clearly

1:26

3 must appear after 2.

1:29

So you notice in both of our scenarios, 2
appears before 3 so (C) must be true and (C)

1:38

would be the correct answer.