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19-11-2018
Mathematics

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A three digit integer is selected at random what is the probability that the number is selected is a perfect square

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Dreamer248 Dreamer248

25-11-2018

Total number of outcomes= 100-999 = 900 outcomes

lowest perfect square= 100

highest perfect square = √1000 ≈ 31.5

= 31^2 = 961

So; No of perfect squares= 10-31 = 22

So; probability of getting a perfect square= 22/900 = 11/450

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