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Probability that A speaks truth is 4/5 A coins is tossed. A reports that a head appears.

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Probability that A speaks truth is 4 5 4 A coins is tossed. A reports that a head appears. The probability that actually there was head is (A) 4 5 4 (B) 1 2 1 (C) 1 5 1 (D) 2 5 2 Select the correct answer from above options

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Answer is (A) Let E1 : Head appers. E2 : Tail appers A : Reports that head appears

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