Question
Ashu studies at Byju's classes and her probability of selection in IIT-JEE is 45. Ridhima took coaching at FIIT-JEE and the probability of her selection is 23. What is the probability that only 1 of them cracks the Exam?
Answer: Option A
:
A
P(A)= 45
P(R)=23
P(E)= P(A'R)+P(AR')
P(E)=15×23+45×13
P(E)=215+415
P(E)= 615
P(E)= 25
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:
A
P(A)= 45
P(R)=23
P(E)= P(A'R)+P(AR')
P(E)=15×23+45×13
P(E)=215+415
P(E)= 615
P(E)= 25
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