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A bag contains cards which are numbered from 2 to 90. A card is drawn at random from the bag. Find the probability that it bears (i) a two digit number       (ii) a number which is a perfect square

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RD SHARMA ENGLISH-PROBABILITY -All Questions
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  16. It is given that in a group of 3 students, the probability of 2 stu...

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  18. A box contains 5 red marbles, 8 white marbles and 4 green marbles. ...

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