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A speaks truth in 70% of the cases and B...

A speaks truth in `70%` of the cases and B in `80%` of the cases. In what percent of cases are they likely to agree in stating the fact ? Do you think, when they agree mean both are speaking truth ?

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The correct Answer is:
`62%`
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ACCURATE PUBLICATION-PROBABILITY -Questions Carrying Type - 4 marks
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  2. A speaks truth in 75% of cases and B in 80% of cases. The percentage o...

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  3. A speaks truth in 70% of the cases and B in 80% of the cases. In what ...

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  4. Probability of A, B and C of solving a problem are (1)/(5), (1)/(6) an...

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  5. The probability of A hitting a target is 4/5 and that of B hitting it ...

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  6. Probability of solving specific problem independently by A and B are 1...

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  7. A and B toss a coin alternately till one of them tosses a head and win...

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  8. A and B throw two dice simultaneously turn by turn. A will win if he t...

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  9. An urn contains 5 red and 5 black balls. A ball is drawn at random, it...

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  10. There are two bags I and II. Bag I contains 4 white and 3 red balls wh...

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  11. There are two bags I and II . Bag I contains 3 white and 2 red balls a...

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  12. Bag I contains 4 red and 5 black balls and bag II contains 3 red and 4...

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  13. In a set of 10 coins, 2 coins with heads on both sides. A coin is sele...

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  14. Of the students in a college, it is known that 60% reside in hostel an...

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  15. 40% students of a college reside in hostel and the remaining reside ou...

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  16. Suppose that 5% of men and 0.25% of women have grey hair. A grey haire...

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  17. Assume that the chances of a patient having a heart attack is 40%. It ...

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  18. Suppose a girl throws a die. If she gets a 5 or 6, she tosses a coin t...

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  19. A card from a pack of 52 cards is lost. From the remaining cards of th...

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  20. A man is known to speak the truth 4 times out of 5 times. He throws a ...

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