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Six boys and six girls sit in a row rand...

Six boys and six girls sit in a row randomly. The probability that the six girls sit together or the the boys and girls sit alternatly, is

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MODERN PUBLICATION-PROBABILITY -EXERCISE
  1. A urn contains 9 red, 7 white and 4 black balls. A ball is drawn at ra...

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  2. A urn contains 9 red, 7 white and 4 black balls. A ball is drawn at ra...

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  3. Six boys and six girls sit in a row randomly. The probability that the...

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  4. Six boys and six girls sit in a row at random. Find the probability th...

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  5. A coin is tossed thrice. If event E denotes the ‘number of heads is od...

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  6. From a group of 2 men and 3 women, two persons are selected. Describe ...

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  7. What is the probability that the numbers selected from the numbers 1, ...

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  8. What is the probability that a number selected from the numbers 1, 2, ...

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  9. A bag contains 3 red balls bearing one of the numbers 1, 2 or 3 (one n...

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  10. A bag contains 3 red balls bearing one of the numbers 1, 2 or 3 (one n...

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  11. A bag contains 3 red balls bearing one of the numbers 1, 2 or 3 (one n...

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  12. In a lottery, a person chosen six different natural numbers at random ...

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  13. 20 cards are numbered from 1 to 20. One card is then drawn at random. ...

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  14. 20 cards are numbered from 1 to 20. One card is then drawn at random. ...

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  15. 20 cards are numbered from 1 to 20. One card is then drawn at random. ...

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  16. 20 cards are numbered from 1 to 20. One card is then drawn at random. ...

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  17. 20 cards are numbered from 1 to 20. One card is then drawn at random. ...

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  18. 20 cards are numbered from 1 to 20. One card is then drawn at random. ...

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  19. Two dice are thrown. Find the odds in favour of getting the sum : 4. W...

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  20. Two dice are thrown. Find the odds in favour of getting the sum : 5. W...

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