JEE Mains · Maths · STD 11 - 6. permutation and combination
A card from a pack of 52 cards is lost. From the remaining 51 cards, \(n\) cards are drawn and are found to be spades. If the probability of the lost card to be a spade is \(\frac{11}{50}\), the n is equal to
- A 4
- B 6
- C 2
- D 8
Answer & Solution
Correct Answer
(C) 2
Step-by-step Solution
Detailed explanation
n cards are drawn & are found all spade, thus remaining spades \(=13-\mathrm{x}\) remaining total cards \(=52-\mathrm{x}\) Now given that \(\mathrm{P}(\) lost card is spade \()=\frac{11}{50}\)…
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