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Bag I contains 5 red and 7 white balls a...

Bag I contains 5 red and 7 white balls and bag 11 contains 4 red and 8 white balls. One of the bags is selected at random and a ball is drawn from it. The ball is found to be red. Find the probability that ball is drawn from bag II.

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MODERN PUBLICATION-PROBABILITY-EXERCISE
  1. A bag contains 4 red and 4 black balls, another bag contains 2 red and...

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  2. Bag I contains 3 red and 4 black balls, Bag II contains 5 red and 6 bl...

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  3. Bag I contains 5 red and 7 white balls and bag 11 contains 4 red and 8...

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  4. Give three identical boxes I , II and III, each containing two coins. ...

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  5. In a tape recorder factory, three machines A, B and C produced 50%, 30...

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  6. A motorcycle manufacturing company has two plants A and B. Plant A pro...

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  7. A motorcycle manufacturing company has two plants A and B. Plant A pro...

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  8. An insurance company insured 2000 scooters and 3000 motorcycles. The p...

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  9. A doctor is to visit a patient. From the past experience, it is known ...

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  10. A man is known to speak the truth 3 out of 4 times. He throws a die an...

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  11. A bag contains 4 balls. Two balls are drawn at random and are found to...

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  12. Of the students in a college, it is known that 60% reside in hostel an...

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  13. A laboratory blood test is 99% effective in detecting a certain diseas...

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  14. Suppose a girl throws a die. If she gets a 5 or 6, she tosses a coin t...

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  15. There see three coins,one is a two headed coin (having head on both th...

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  16. In a cer tain college, 4% of boys and 1% of girls are taller than 1.75...

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  17. Coloured balls are distributed in three bags as shown in the following...

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  18. Three bags contain balls as shown in the table below: A bag is chose...

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  19. An urn contains 5 red and 2 black balls. Two balls are randomly drawn....

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  20. Let X represent the difference between the number of heads and the num...

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