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Three cards of spades are lost from a pack of $52$ playing cards. The remaining cards were well shuffled and then a card was drawn at random from them. Find the probability that the drawn cards is of black colour.

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2349

2149

149

1249

answer is A.

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Detailed Solution

It is given that three cards of spades are lost from a pack of

52

playing cards. The remaining cards were well shuffled and then a card was drawn at random from them.
We have to find the probability that the drawn cards is of black colour.
The probability of the random experiment E is,

P E = Number of favourable outcomes n E Total number of outcomes n S

Since three cards of spades are lost from a pack from a deck of

52

playing cards, so, the remaining cards in a deck are,

n S = 52 − 3 ⇒ n S = 49

The black cards include

13

spades and

13

clubs. Thus, after removing spades from black colour cards,

n E = 4 − 1 ⇒ n E = 3

So, the probability of getting black card is

P (E) = 2349

So, the required probability is

2349

.
Hence, option 1 is correct.

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