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A bag contains 5 red balls and some blue...

A bag contains 5 red balls and some blue balls. If the probability of drawing a blue ball is double that of a red ball, determine the number of blue balls in the bag.

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OSWAL PUBLICATION-DIKSHA QUESTIONS -UNIT -VII: Statistics and Probability (Probability) (Short Answer Type Questions )
  1. Two different dice are thrown together .Find the probability of : ge...

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  2. Two different dice are thrown together .Find the probability of : ge...

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  3. In a single throw of a pair of different dice, what is the probability...

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  4. In a single throw of a pair of different dice, what is the probability...

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  5. A bag contains 5 red balls and some blue balls. If the probability of ...

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  6. A bag contains 8 red balls and x blue balls , the odd against drawing ...

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  7. A box contains 12 balls out of which x are black. If one ball is dr...

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  8. A die is rolled. Find the probability of getting a number greater than...

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  9. A die is rolled , find the probability of getting a number less than ...

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  10. Find the probability of having 5 Mondays in the month of August .

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  11. There are cards in a bag numbered from 7 to 100 . A card is taken out ...

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  12. There are hundred cards in a bag on which numbers from 1 to 100 are wr...

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  13. A bag contains tickets numbered from 10 to 50 . One ticket is drawn at...

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  14. A bag contains 24 balls of which x are red, 2x are hwite and 3x are bl...

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  15. A bag contains 24 balls of which x are red, 2x are hwite and 3x are bl...

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  16. Three unbiased coins are tossed. What is the probability of getting at...

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  17. Three unbiased coins are tossed together . What is the probability of ...

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  18. A die is thrown twice. What is the probability that: (i) 3 will not ...

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  19. A die is thrown twice . What is the probability that : 3 will come u...

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  20. The quality control officer at a tire factory reported that 20 tires w...

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