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In a musical chairs game, a person has b...

In a musical chairs game, a person has been advised to stop playing the music at any time within 40 seconds after its start. What is the probability that the music will stop within the first 15 seconds?

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The correct Answer is:
`(3)/(8)`
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NAGEEN PRAKASHAN-PROBABILITY-Exercise
  1. In a single throw of a die find the probability that the number : (i...

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  2. It is known that a box of 200 electric bulbs contains 16 defective bul...

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  3. If A and B are two complementary events, then what is the relation bet...

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  4. 17 cards numbered 1,2,3....., 17 are put in a box and mixed thoroughly...

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  5. Which of the following cannot be the probability of an event : (i) (...

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  6. A bag contains 3 red balls and 5 black balls. A ball is drawn at rando...

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  7. In a family of 3 children the probability of having at least one boy i...

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  8. A bag contains 6 red, 5 black and 4 white balls. A ball is drawn from ...

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  9. A book contains 85 pages. A page is chosen at random. What is the prob...

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  10. Which of the following cannot be the probability of an event : (A) 2...

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  11. Two dice are thrown at the same time. Write down the possible outcomes...

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  12. In a musical chairs game, a person has been advised to stop playing th...

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  13. The probability of selecting a red ball at random from a jar that cont...

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  14. A bag contains 18 balls out of which x balls are red. (i) If one bal...

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  15. From a well shuffeled deck of 52 cards, one card is drawn. Find the pr...

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  16. All the three face cards of spades are removed from a well shuffled pa...

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  17. Find the probability that the month of January may have 5 Mondays in (...

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  18. Find the probability that the month of February may have 5 Wednesdays ...

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  19. A jar contains 24 marbles, some are green and others are blue. If a ma...

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  20. Offices in Delhi are open for five days in a week (Monday to Friday). ...

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