1.

One is asked to say a two-digit number. What is the probability of it being a perfect square?

Answer»

Total no. of two-digit numbers = 90

Perfect squares from 10 to 99 are 16, 25, 36, 49, 64, 81.

There are 6 favourable numbers Probability = \(\frac{6}{90}=\frac{1}{15}\)



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