The question given below consists of a statement and /or a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statement(s) is/are sufficient to answer the given question. A card is picked at random from a well shuffled regular pack of cards. What card is it? I. If another card is drawn without replacement, the probability that it is a red queen is not 2/51 II. If another card is drawn without replacement, the probability that it is not a diamond is 13/17
The question given below consists of a statement and /or a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statement(s) is/are sufficient to answer the given question. A card is picked at random from a well shuffled regular pack of cards. What card is it? I. If another card is drawn without replacement, the probability that it is a red queen is not 2/51 II. If another card is drawn without replacement, the probability that it is not a diamond is 13/17 Correct Answer BOTH statements (1) and (2) TOGETHER are sufficient to answer the question asked, bu tNEITHER statement ALONE is sufficient
From statement I:
If the card drawn is not a black queen, then there are 2 red queens left in the pack
When another card is drawn, the probability of getting a red queen would be 2/51
So, using I alone, we know that the card picked was a red queen but we do not know exactly which suit it belongs to
From statement II:
The probability that the second card is of diamonds is 1 - (13/17) = 4/17 = 12/51
That means that there are 12 cards of diamonds left in the pack. So, we know that the first card was of diamonds
Using I and II together we can conclude that the 1st card was the queen of diamonds
∴ Option 3 is the correct answer