Probability question

Question

Krystal and Julio each purchase one raffle ticket. If a total of sixteen raffle tickets are sold, what is the probability that Krystal wins the grand prize and Julio wins the second prize?

Answer 1

The probability that Krystal wins the grand prize is 1/16. Given that Krystal wins the grand prize, there are 15 possible ticket holders that could win the second prize, so Julio has a probability of 1/15 of winning the second prize. Thus, the probability that Krystal wins the grand prize and Julio wins the second prize is (1/16)*(1/15) = 1/240.