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 a fact is

A

`(4)/(5)`

B

`(1)/(5)`

C

`(7)/(20)`

D

`(3)/(20)`

Text Solution

Verified by Experts

The correct Answer is:

C

Topper's Solved these Questions

PROBABILITY
TARGET PUBLICATION|Exercise COMPETITIVE THINKING (MISCELLANEOUS)|3 Videos
PROBABILITY
TARGET PUBLICATION|Exercise EVALUATION TEST|8 Videos
PROBABILITY
TARGET PUBLICATION|Exercise COMPETITIVE THINKING (ALGEBRA OF EVENTS , CONCEPT OF PROBABILTIY)|42 Videos
FACTORIZATION FORMULAE
TARGET PUBLICATION|Exercise EVALUATION TEST|8 Videos
SETS, RELATIONS AND FUNCTIONS
TARGET PUBLICATION|Exercise EVALUATION TEST|14 Videos

Similar Questions

Explore conceptually related problems

The probability that A speaks truth is 5/6 , while this probability for B is 4/5 .The probability that they contradict each other when asked to speak on a fact is ___

The probability that A speaks truth is (4)/(5) while this probability for B is (3)/(4) .The probability that they contradict (A) (4)/(5) (B) (1)/(5) (C) (7)/(20) (D) (3)/(20)

X speaks truth in 60% and Y in 50% of the cases. The probability that they contradict each other narrating the same incident is

A speaks the truth in 70 percent cases and B in 80 percent. The probability that they will contradict each. other when describing a single event is

Probability that A speaks truth is 3/5 , and that for B is 7/10 . If they agree on a statement, then probability that this statement is true is

A speaks truth in 80% of the cases while B speaks truth in 60% of the cases. Find the probability that they will contradict each other while stating the same fact.

Probability that A speaks truth is 4/5 . A coin is tossed and A reports that a tail appears. Find the probability that actually there was tail.

TARGET PUBLICATION-PROBABILITY-COMPETITIVE THINKING (ADDITION THEOREM AND CONDITIONAL PROBABILITY)

A bag contains 3 black and 4 white balls. Two balls are drawn one by o...
Text Solution
|
The probability of India winning a test match against West Indies i...
Text Solution
|
The probability that A speaks truth is (4)/(5), while this probability...
Text Solution
|
The probability that A speas truth is (4)/(5) while this porbability...
Text Solution
|
X speaks truth in 60% and Y in 50% of the cases. Find the probabili...
Text Solution
|
A speaks the truth in 70% cases and B in 80% cases. The probability th...
Text Solution
|
In a certain town, 60% of the families own a car, 30% own a house and ...
Text Solution
|
A husband and wife appear in an interview for two vacancies for the ...
Text Solution
|
A problem is given to 3 students. Their chances of solving it individu...
Text Solution
|
The probabilities of solving a question by three students are 1/2,1/4,...
Text Solution
|
If 4 P(A) = 6 P(B) = 10 P(A nn B) = 1 then P((B)/(A))=
Text Solution
|
If P(S) = 0.3, P(T) = 0.4, S and T are independent events, then P(S/T)
Text Solution
|
If P(AcapB)=7/10 and P(B)=17/20,then P(A/B) equals to
Text Solution
|
it is given that the events A and B are such that P(A)=1/4, P(A/B)=1/2...
Text Solution
|
If two events Aa n dB are such that P(A^o)=0. 3 ,P(B)=0. 4 ,a n dP(...
Text Solution
|
A coin is tossed three times in succession. If E is the event that the...
Text Solution
|
Ram is visiting a friend. Ram knows that his friend has 2 children and...
Text Solution
|
One ticket is selected at random from 50 tickets numbered 00, 01, 0...
Text Solution
|
In a class, 40% of students study maths and science and 60 % of studen...
Text Solution
|
If A and B are two events such that P(A uu B) = P(A nn B) then the t...
Text Solution
|