A card out of a deck of 52 cards is lost. After that two cards are taken out at random and are found to be spades. What is the probability that lost card is a spade?

• ans may be 11c1/50c1 because we already drawn one card those two are spades so we have only 11 spades now so probability of 50 cards to get spade must be 11/50
• 10 years agoHelpfull: Yes(39) No(4)
• we have 13 spades in 52 cards so probability is:13c1/52c1
  1/4
  
• 10 years agoHelpfull: Yes(11) No(13)
• this question is of given proabability divide by total probability
  
  answer is 11/50
  solution:-
  13c1 * 12c2/(13C1*12c2 + 39C1*13c2)= 11/50 answer
• 10 years agoHelpfull: Yes(6) No(2)
• shud b 12C2/51C2
• 10 years agoHelpfull: Yes(2) No(1)
• Out of 52 cards already 2 cards are taken out so ther are 50 cards are present & there 11 spades card are there out of 13....so we have to choose one spade card from 13 spade card & we have total 50 cards...so probability will be 11/50
• 10 years agoHelpfull: Yes(2) No(0)
• ans should be 11C1/49C1
  lost one card .
  after taking 2 spades we have 12 spades now so probability of drawing another spade will be 12C1/49C1 but that the first card was also a spade will be 11C1/49C1.
  As the card that was lost was also a spade.
• 10 years agoHelpfull: Yes(1) No(3)
• 13C2/52C2=1/17
• 10 years agoHelpfull: Yes(0) No(1)
• 12C1/49C1=12/49
• 10 years agoHelpfull: Yes(0) No(3)