Two cards are drawn from a well shuffled pack of 52 cards. The probability that one is heart card and the other is a king is p, then the value of 104p is____.

Answer

4

Explanation

Let event A:Card is of heart but not king (12 cards) Event B: King but not here (3 cards)
Event C: Heart and king (1 card)
`therefore` Required probability
`p=P(E)=(""^(12)C_(1)""^(3)C_(1)+""^(3)C_(1).""^(1)C_(1)+""^(1)C_(1).""^(12)C_(1))/(""^(52)C_(2))=2/52therefore104p=4`