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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-PROBABILITY -All Questions
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  2. A back contains 3 red balls and 5 black balls. A ball is drawn at r...

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  3. A bag contains cards which are numbered from 2 to 90. A card is dra...

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  4. A game of change consists of spinning an arrow which is equally lik...

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  5. Two customers are visiting a particular shop in the same week (Mond...

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  6. In a class, there are 18 girls and 16 boys. The class teacher wants...

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  7. Why is tossing a coin considered to be a fair way of deciding which...

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  8. What is the probability that a number selected at random from the n...

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  9. The faces of a red cube and a yellow cube are numbered from 1 to 6....

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  10. The probability of selecting a green marble at random from a jar th...

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  11. There are 30 cards, of same size, in a bag on which numbers 1 to 30 ...

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  12. A bag contains 5 red, 8 white and 7 black balls. A ball is drawn at...

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  13. Find the probability that a number selected from the number 1 to 25...

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  14. A bag contains 8 red, 6 white and 4 black balls. A ball is drawn at...

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  15. A bag contains lemon flavoured candies only. Malini takes out one c...

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  16. It is given that in a group of 3 students, the probability of 2 stu...

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  17. A bag contains 3 red balls and 5 black balls. A ball is drawn at ra...

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

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  19. A lot of 20 bulbs contain 4 defective ones. One bulb is drawn at ra...

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  20. Suppose the bulb drawn in (i) is not defective and not replaced. No...

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