Management Aptitude Test 2018 Paper

Question : 99 of 200

Marks: +1, -0

One person speaks truth in 80% of the cases and another person in 90% of the cases. While stating the same fact, what is the probability that they contradict?

$37/50$
$13/50$
$16/50$
None of these

Validate

Solution:

(b) They contradict only when one speaks truth and one lies.
∴ Required probability =

80/100×10/100+20/100×90/100

8/100+18/100

26/100=13/50

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