# Solution - Probability - A Theoretical Approach

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ConceptProbability - A Theoretical Approach

#### Question

A box contains 90 discs which are numbered from 1 to 90. If one disc is drawn at random from the box, find the probability that it bears

(i) a two-digit number

(ii) a perfect square number

(iii) a number divisible by 5.

#### Solution

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