tcs
Company
Numerical Ability
Probability
two cards are drawn at random from an ordinary pack of cards . find the probability that they will consist of a king
Read Solution (Total 7)
-
- Ans:1/221
if we take the card which is in king card ,Totally 4 kings from 52 cards so,4c2/52c2 - 8 years agoHelpfull: Yes(8) No(1)
- Sample space is 50C2 which is equal to 1326. Events of getting 2 kings out of 4 is 4C2 which is equals to 6. So probability of getting two kings is 6/1326=1/221.
- 8 years agoHelpfull: Yes(7) No(3)
- there are a total of 4 kings , so possible ways to draw 2 cards without a king 48C2.
the possible no of ways to draw 2 cards both being kings 4C2.
and the sample space is 52C2.
so probability = {52C2-(4C2+48C2) }/52C2 .
and if the question mentions atleast a king, then it would be 1-{48C2/52C2}. - 8 years agoHelpfull: Yes(3) No(1)
- i think it is (33/221)..
if one card is king and second card is not a king then probability =( 4c1 * 48c1)/52c2
if two are kings then probabilty = 4c2/52c2....
so total probability = ((4 * 48 )+ 6)/1326 = 33/221 - 8 years agoHelpfull: Yes(1) No(0)
- 1/221
in pack of 52 cards 4 are kings - 8 years agoHelpfull: Yes(1) No(0)
- 4c2/52c2
because there will be 4 king from 4 sets of 13 cards there are the fav conditions
and the total probability is 52 cads and from them we have to get 2 cards - 8 years agoHelpfull: Yes(0) No(1)
- 4/52--as there are total 4 kings out of 52
- 6 years agoHelpfull: Yes(0) No(0)
tcs Other Question