Mathematics
A box contains 90 cards numbered 1 to 90. If one card is drawn from the box at random, then the probability that the number on the card is a perfect square is
Probability
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Answer
Sample space = {1, 2, 3, …., 90}, which has 90 equally likely outcomes.
Let A be the event of drawing a perfect square card.
∴ A = {1, 4, 9, 16, 25, 36, 49, 64, 81}.
Hence, the number of favourable outcomes to event A = 9.
∴ P(A) = .
Hence, Option 1 is the correct option.
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