JEE Main 2021 — Probability Question with Solution
From: JEE Main 2021 (Online) 25th February Evening Shift
Question
In a group of 400 people, 160 are smokers and non-vegetarian; 100 are smokers and vegetarian and the remaining 140 are non-smokers and vegetarian. Their chances of getting a particular chest disorder are 35%, 20% and 10% respectively. A person is chosen from the group at random and is found to be suffering from the chest disorder. The probability that the selected person is a smoker and non-vegetarian is :
Choose an option
Show full solutionCorrect option: D
Correct answer
D
Step-by-step explanation
Consider following events
A : Person chosen is a smoker and non vegetarian.
B : Person chosen in a smoker and vegetarian.
C : Person chosen is a non-smoker and vegetarian.
E : Person chosen has a chest disorder
Given
To find
A : Person chosen is a smoker and non vegetarian.
B : Person chosen in a smoker and vegetarian.
C : Person chosen is a non-smoker and vegetarian.
E : Person chosen has a chest disorder
Given
To find
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