Question

A bag contains 100 identical marble stones which are numbered 1 to 100. If one stone is drawn at random from the bag, find the probability that it bears a perfect square number.

Answer 1

Total number of possible outcomes = 100 

Numbers which are perfect squares = 1, 4, 9, 16, 25, 36, 49, 64, 81, 100  

Number of favorable outcomes = 10

P(a perfect square) = `10/100 = 1/10`