― PuzzleTwo identical pack of cards A and B are shuffled throughly. One card is picked from A and shuffled with B. The top card from pack A is turned up. If this is the Queen of Hearts, what are the chances that the top card in B will be the King of Hearts? ∙ Solution 52 / 2703 ∙ There are two cases to be considered. ∙ CASE 1 : King of Hearts is drawn from Pack A and shuffled with Pack B Probability of drawing King of Hearts from Pack A = 1/51 (as Queen of Hearts is not to be [...].