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The probability that Chakri passes in maths is and probability the he passes in english is . If the probability of passing both course is then the probability that Chahri will pass in at least one of the subject is

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answer is A.

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Detailed Solution

Let the A be event that Chakri passes in maths and B be event that pass in English
We get

⇒ probability = P(A ∩ B)
= P(A) + P(B) − P(A ∩ B)

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