Bill has a small deck of 12 playing cards made up of only 2 suits of 6 cards each. Each of the 6 cards within a suit has a different value from 1 to 6; thus, there are 2 cards in the deck that have the same value.
Bill likes to play a game in which he shuffles the deck, turns over 4 cards, and looks for pairs of cards that have the same value. What is the chance that Bill finds at least one pair of cards that have the same value?
a) 8/33
b) 62/165
c) 17/33
d) 103/165
e) 25/33
Please explain how to approach such questions, I am having a tough time with them.
OA :
c
Bill likes to play a game in which he shuffles the deck, turns over 4 cards, and looks for pairs of cards that have the same value. What is the chance that Bill finds at least one pair of cards that have the same value?
a) 8/33
b) 62/165
c) 17/33
d) 103/165
e) 25/33
Please explain how to approach such questions, I am having a tough time with them.
OA :
c
. 
