Multiple choice

Two card are drawn from a pack of well shuffled cards one after another without replacement. Find the probability that only one card is of red colour.

  1. 13/51

  2. 26/51

  3. 51/221

  4. 84/221

  5. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Probability of exactly one red = P(Red then Black) + P(Black then Red). P(Red,Black) = (26/52) × (26/51) = 26/51 × 1/2 = 13/51. P(Black,Red) = (26/52) × (26/51) = 13/51. Total = 13/51 + 13/51 = 26/51. This matches option B exactly. The answer is correct.

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