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Probability that A speaks truth is 4/5. ...

Probability that A speaks truth is `4/5`. A coin tossed. A reports that a head appears. The probability that actually there was head is a)`4/5` b)`1/2` c)`1/5` d)`2/5`

A

4/5'

B

1/2'

C

1/5'

D

2/5'

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The correct Answer is:
A
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