Question

A deck of cards is shuffled and then divided into two halves of 26 cards each. A card is drawn from one of the halves; it turns out to be an ace. The ace is then placed in the second half-deck. The half is then shuffled, and a card is drawn from it. Compute the probability that this drawn card is an ace.

Answer 1

The probability can be 1/13,2/13,3/13,4/13,5/13,6/13,7/13,8/13,9/13,10/13,11/13,12/13,13/13.