While shuffling a pack of 52 playing cards, 2 are accidentally dropped. Find the probability that the missing cards to be of different colours
A. 29/52
B. 1/2
C. 26/51
D. 27/51
There are 26 red cards & 26 black cards in a pack of 52 cards.
Now,
2 cards are accidently dropped …….. (given)
Thus,
Probability of dropping a red card first = 26 /52
& probability of dropping a red card second = 26 / 51
…….. (since one card is already dropped, we are left with 51 cards)
Now,
Probability of dropping a black card first = 26 /52
Probability of dropping a black card second= 26 /51
Thus,
P (both cards are of diff colour) = 26/52 x 26/51 + 26/52 + 26/51
= 2 x 26/52 x 26/51
= 26 /51
Thus, option C is the correct answer.