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A bag contains 100 identical marble st...

A bag contains 100 identical marble stones which are numbered form 1 to 100. If one stone is a drawn at random from the bag, find the probability that it bears (i) a number divisible by 4 or 5 ,(ii) a number divisible by 4 and 5.

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The correct Answer is:
(i) `(2)/(5)` (ii) `(1)/(20)`
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