The probability of drawing an ace, a king and a queen of any suit in that order is sampling is without replacement from a deck of 52 ordinary playing cards.

The deck has 4 aces, 4 kings and 4 queens.

When you start the game, you have a probability of 4/52 = 1/13 to pick up an ace.

Since there is no replacement, after you pick the first ace you have a probability of 4/51 of picking up a king. In fact, there are still 4 kings in the deck, but only 51 cards left (we already picked up the first ace.

Finally, for the same reason, you have a 4/50=2/25 probability of picking up a queen as the third card.

So, the probability of making these three picks one after the other is the product of all these probabilities: