1)

While shuffling a pack of 52 playing cards, 2 are accidentally dropped. The probability that the missing cards to be of different colours is 


A) 2952

B) 12

C) 2651

D) 2751

Answer:

Option C

Explanation:

 There are 26 red cards and 26 black cards 

i.e, total  number of cards =52

 P(both cards of different colours)

= P(B)P(R)+P(R)P(B)

  =  2652×2651+2652×2651=2(2652×2651)=2651