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A and B are two independent events. If t...

A and B are two independent events. If the probability that both A and B occur is 1/20 and the probability that neither of them occurs is 3/5, then P(A)+P(B)=

A

9\20

B

3\20

C

7\20

D

none

Text Solution

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The correct Answer is:
C
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DIPTI PUBLICATION ( AP EAMET)-PROBABILITY-EXERCISE-1C
  1. A man and a woman appear in an interview for vacancies in the same pos...

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  2. A and B are two independent events such that the probability of the bo...

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  3. A and B are two independent events. If the probability that both A and...

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  4. A problem is EAMCET examination is given to 3 students A, B, and C who...

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  5. The probabilities of solving a problem by three students A,B,C indepen...

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  6. The probabilities of a problem being solved by three students are 1/3 ...

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  7. A,B,C are 3 newspaper from a city. 20% of the population red A, 16% re...

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  8. The odds against A solving a problem are 8 to 6 and the odds in favour...

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  9. The odds against A solving a problem are 3 to 2 and the odds in favour...

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  10. The probability of drawing two black balls in successsion from a bag c...

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  11. The probability of drawing two red balls in succession from a bag cont...

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  12. A bag containing 2 white, 3 black and 4 green balls. If 2 balls are dr...

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  13. There are 7 red, and 3 white marbles in an um. If 3 marbles are random...

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  14. Bag A contains 4 white, 3 black balls. Bag B contains 3 white and 5 bl...

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  15. A bag contains 6 white and 4 black balls. Two balls are drawn at rando...

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  16. Bag A contains 4 white, 3 black balls. Bag B contains 3 white ad 5 bla...

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  17. Three faces of a fair die are yellow, two faces red and one blue. The ...

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  18. A card is drawn from a pack at random. After noting the card it is rep...

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  19. Two cards are drawn successively with replacement from a well shuffled...

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  20. The probability that India wins a cricket match against England is giv...

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