The question can be found here:

Probability question? - Yahoo! Answers

Please don't provide an explanation. Just give me a hint.

A 6-sided number cube, with faces numbered 1 through 6, is to be rolled twice. What is the probability that the number that comes up on the first roll will be less than the number that comes up on the second roll?

a. 1/4

b. 1/3

c. 5/12

d. 7/12

e. 1/2

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I have thought about this question for a while now. It doesn't make sense to me because I'm not given any information about the outcomes. Can I have a hint?