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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 from the bag is thrice that of a red ball, find the number of blue balls in the bag.

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KALYANI PUBLICATION-PROBABILITY-EXERCISE
  1. A bag contains 5 red balls and some blue balls. If the probability of ...

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  2. a number is selected from 1,2,3,....,15. what is the probability that ...

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  3. if a letter is chosen at random from the 'SECONDARY' what is the proba...

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  4. if a letter is chosen at random from the 'SECONDARY' what is the prob...

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  5. a die is thrown once. What is the probability of getting an even numbe...

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  6. a die is thrown once. What is the probability of getting a number grea...

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  7. A bag contains 9 black balls and 12 white balls. one ball is drawn at ...

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  8. a lot consist of 100 ball pens of which 16 are defective and others ar...

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  9. a lot consist of 100 ball pens of which 16 are defective and others ar...

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  10. A carton consist of 100 shirt of which 88 are good, 8 have minor defec...

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  11. A carton consist of 100 shirt of which 88 are good, 8 have minor defec...

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  12. a bag contains ticket number 11,12,....,30. it is taken out from the b...

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  13. a bag contains ticket number 11,12,....,30. it is taken out from the b...

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  14. cards marked with 3,4,5,....,50 are placed in a box and mixed throughl...

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  15. cards marked with 3,4,5,....,50 are placed in a box and mixed throughl...

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  16. cards marked with numbers 1, 2,3,.....,25 are placed in a box and mixe...

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  17. cards marked with numbers 1, 2,3,.....,25 are placed in a box and mixe...

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  18. cards marked with numbers 1, 2,3,.....,25 are placed in a box and mixe...

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  19. cards marked with numbers 1, 2,3,.....,25 are placed in a box and mixe...

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  20. A bag contain 4 red balls 5 black balls and 6 white balls. if one ball...

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  21. A bag contain 4 red balls 5 black balls and 6 white balls. if one ball...

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