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The probability that A speaks truth is 4...

The probability that A speaks truth is 4/5 , while this probability for B is 3/4 . The probability that they contradict each other when asked to speak on a fact is

A

`3//20`

B

`4//5`

C

`7//20`

D

`1//5`

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The correct Answer is:
C
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DIPTI PUBLICATION ( AP EAMET)-PROBABILITY-EXERCISE-1C
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  2. The probability of A solving a problem is 0.3 and the probability of B...

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  3. The probability that A speaks truth is 4/5 , while this probability fo...

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  4. A speaks truth in 80% of the cases and B in 60% of the cases. The perc...

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  5. A speaks the truth in 75% of the cases , B in 80% cases. What is the p...

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  6. For a student the probability of getting a pass in one paper is 75% an...

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  7. There are four machines and it is known that exactly two of them are f...

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  8. Two person A , B in order cut a pack of cards replacing them after eac...

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  9. Two persons A and B toss a die. The person who first throws 6 first th...

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  10. Two persons A and B are rolling die on the condition that the person w...

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  11. Three persons A, B ,C in order toss a die. The person who first throws...

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  12. A,B,C are tossing a coin on the condition that , the person who gets a...

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  13. The person, A in order toss a die. The person who throws 5 or 6 wins. ...

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  14. 2 white balls and 3 blanks balls and 3 blank balls are placed in a bag...

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  15. Three white balls and five blacks balls are placed in a bag and three ...

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

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  17. A fair die is thrown until a score of less than five points is obtaine...

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  18. A man throws a die until he gets a number bigger than 3. The probabili...

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  19. On a toss of two dice, A throws a total of 5. Then the probability tha...

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  20. A and B throw a pair of dice. A wins if the throws 6 before B throws 7...

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