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[" A box contains "90" discs which are n...

[" 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.]

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A box contains 90 discs which are numbered from 1 to 90. If one disc is selected at random from the box, find the probability that it bears (1) a two-digit number (ii) a perfect square number (iii) a number divisible by 5.

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