Probability of card shuffling homework

[nikk834]

Homework Statement

A deck of cards is shuffled and a card is dealt. The remaining cards are shuffled and another card is dealt. The process is repeated until you have four cards dealt from the main pack. Use probability trees to determine the probability of obtaining:

four red cards (not including JQK hearts or JQK diamonds)?

Homework Equations

The Attempt at a Solution

For this would you put 20/46, 19/45, 18/44 and 17/43 or would you put the 20/52, 19/51, 18/50,17/49?

 

[benhou]

Well, it depends on the question. By "(not including JQK hearts or JQK diamonds)", does it mean not to use them at all in the deck or they are used but just don't count as red cards.