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Select the correct option from the given alternatives : The odds against an event are 5:3 and the odds in favour of another independent event are 7:5. The probability that at least one of the two eve

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प्रश्न

Select the correct option from the given alternatives :

The odds against an event are 5:3 and the odds in favour of another independent event are 7:5. The probability that at least one of the two events will occur is

पर्याय

  • `52/96`

  • `71/96`

  • `69/96`

  • `13/96`

MCQ
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उत्तर

`71/96`

Explanation;

[Hint : Required probability = `1 - 5/8 xx 5/12`

= `1 - 25/96 = 71/96`]

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पाठ 9: Probability - Miscellaneous Exercise 9 [पृष्ठ २१३]

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बालभारती Mathematics and Statistics 1 (Arts and Science) [English] Standard 11 Maharashtra State Board
पाठ 9 Probability
Miscellaneous Exercise 9 | Q I. (10) | पृष्ठ २१३

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संबंधित प्रश्‍न

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Solution: Let,

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B : second ball drawn in white.

P(A) = `square/square`

After drawing the first ball, without replacing it into the bag a second ball is drawn from the remaining `square` balls.

∴ P(B/A) = `square/square`

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