Answer: Given your multiple choices, the probability is 1/32 (but pls see details).
Steps:
A probability is a ratio of the number of successes and the total number of possible outcomes.
The "successes" her are defined to be rolling a 3 and a 5. Here's where the language becomes tiny bit ambiguous: it is unclear if they mean rolling a 3 and a 5 in any order, or rolling a 3 followed by a 5. So what follows are both cases.
Rolling a 3 and a 5 in any order:
number of successful possibilities: 2 (rolling (3,5) or (5,3))
number of all possible outcomes: 6*6 = 36
probability({3,5}) = 2/36 = 1/18
Rolling a 3 followed by a 5 in that order:
number of successful possibilities: 1 (rolling (3,5) )
number of all possible outcomes: 6*6 = 36
probability({3,5}) = 1/36 << This is the answer to your question
