sign up I login
 advanced
refer a friend - earn nickels!!

Ask & Discuss Questions with Community & Experts

Moderation Team
Ask iit jee aieee pet cbse icse state board community Discussion Response Post to: Probability!!!!!!Addition Theorem...
Forum Index -> Algebra -> View Full Question like the article? email it to a friend.  
Author Message
nishantsingh89 (970)

Blazing goIITian

Olaaa!! Perrrfect answer. 168  [233 rates]

nishantsingh89's Avatar

total posts: 422    
offline Offline
no. of ways of selecting cards from same suit = 13C2
total ways of selecting 2 cards = 52C2
no. of ways of selecting 2 kings = 4C2

so probability of selecting 2 cards fro same suit or 2 kings = 13C2/52C2 + 4C2/52C2

= 78+6/26*51 = 84/26*51 = 14/13*17 = 14/221

The heights which great men reached and kept, Were not attained by sudden flight, They, whilst their companions slept, Were toiling upwards in the night....
 this reply: 0 points  (with Olaaa!! Perrrfect answer.   in 0 votes )   [?]
 
You have to be logged on to rate
  
 

Top Offers for goIITians
Correspondence Courses
Brilliant Tutorials
Narayana Institute
Aakash Institute
Classroom/Crash Courses
Narayana - Kota , Delhi , Others
Brilliant Tutorials - Class , Crash
Aakash Institute - Medical , Engg
Online Test Series
Brilliant Tutorials
Narayana Institute
Aakash Institute
Mahesh Tutorials
AMITY      Sri Chaitanya