Published by:
CGP EDU Academic Team
Published on: August 13, 2026
A pack of cards is counted with face downwards. It is found that one card is missing. One card is drawn and is found to be red. Then the probability that the missing card is red.
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
A → missing card is red P = 
B → missing card non red P = 
E → card drawn is red
P(E) = P(a) P(E/A) + P(b) P(E/B) = 
× 
+ 
× 
= 
⇒ P(A/E) = 
= 
= 
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