Published by:
CGP EDU Academic Team
Published on: August 13, 2026
There are 5 brilliant students in class XI and 8 brilliant students in class XII. Each class has 50 students. The odds in favour of choosing the class XI are 2 : 3. One of the classes is chosen randomly and then a student is randomly selected. Find the probability of selecting a brilliant student.
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
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Sol. XI → 5 /50
XII → 8 / 50 P(X Ι ) = 
, P(X ΙΙ ) = 
P(Brilliant ) = 
× 
+ 
× 
= 
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