Brilliant led lights life hacks

Brilliant plumage in peacock is a

Consider the following statements P: Suman is brilliant Q: Suman is rich R: Suman is honest The negation of the statement "Suman is brilliant and dishonest if any only if Suman is rich" can be expressed as

There are 5 brilliant students in class XI and 8 brilliant students in class XlIl.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.