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The probability that A speaks truth is (...

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 an event is ……….

A

`(7)/(20)`

B

`(1)/(5)`

C

`(3)/(20)`

D

`(4)/(5)`

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A
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KUMAR PRAKASHAN-PROBABILITY-Multiple Choice Questions (MCQs)
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  2. A problem in mathematics is given to three students A, B, C and their ...

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

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  4. A company has three plants at which it produces a certain item. 30% ar...

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  5. A problem of mathematics is given to three students and probability of...

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  6. Let E(1), E(2), E(3), ....,E(n) be independent events with respective ...

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  7. Two cards are drawn at random from the well shuffled pack of 52 cards....

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  8. If A and B are two independent events such that P(A)= (1)/(2), P(B)= (...

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  9. A small town has one fire engine and one ambulance available for emerg...

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  10. If A and B are two independent events such that P(A cap B)= (3)/(25) ...

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  11. A and B are independent events P(A cap B)= 0.5 and P(A)= 0.2 then P(B)...

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  12. A purse contains 6 Silver coins and 3 Gold coins. Another purse contai...

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  13. A fair coin is tossed n times, then what is the probability that H (He...

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  14. A building has two lifts. L(1) and L(2) are events when lifts are work...

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  15. Suppose A and B are two persons. The probability that A does the job i...

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  16. Three machines A, B and C produce respectively 30%, 50% and 20% of the...

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  17. Let X be the random variable with following probability distribution. ...

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  18. If P(A cap B)= (1)/(12) and P(A' cap B')= (1)/(2) then P(A) + P(B) = ....

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  19. Probability of an event that newly purchase mobile and laptop will be ...

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  20. A problem in mathematics is given to three students A, B, C and their ...

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