Multiple choice

A card is drawn from a pack of 50 cards numbered 1 to 50. Find the probability of drawing a number which is a square.

  1. 1/10

  2. 7/50

  3. 43/50

  4. 3/25

  5. 3/50
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B Correct answer
Explanation

There are seven perfect square numbers in the given range. Let A = Event of getting a number, which is a square = ( 1,4,9,16,25,36, 49). Hence, n(A) = 7. There are total 50 cards, so 50 possible outcomes. Hence, n(S) = 50. Therefore, required probability, P(A) = n(A) / n(S) = 7/50.

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