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There see three coins,one is a two heade...

There see three coins,one is a two headed coin (having head on both the faces),another is a biased coin that comes up heads 75% of the time and the third is anunbiased coin.One of the three coins is choosen at random and tossed.Of it shows head,what is probability that it was the two headed coin?

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`(20)/(47)`
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There are three coins. One of the two headed coin another is a biased coin that comes up heads 75% of the times and the third is also a biased coin tht comes up tails 40% of the times. One of the three coins is chosen at random and tossed, and it shows head. what is the probability that it is a two headed coin?

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