A bag contains five white, three black, and four red balls. A single drawing of three balls is made. Find the probability that the three balls will all be of a different color?

Is it (5/12) times (4/11) times (3/10)??????

The other one that did not make sense was...

From a deck of 52 cards, three aces have been drawn one at a time in three consecutive draws. What is the probability of the fourth ace being drawn on the next draw, and what is the probability of these four aces being drawn as described?

Is the second part of that question (4/52)(3/51)(2/50)(1/49)? I am not sure of the first part of the question, where do I start?

I do not want to be a bother, ill be greatful to anyone who can make me better and smarter and help me with this!