[" A purse contains "n" coins of unknown...

[" A purse contains "n" coins of unknown values.A coin is drawn from it at random and is found to be a rupee."],[" Then the chance that it is the only rupee coin in the purse,is "],[[" (a) "(1)/(n)," (b) "(2)/(n+1)," (c) "(1)/(n(n+1))," (d) "(2)/(n(n+1))]]

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[" A purse contains "n" coins of unknown values.A coin is drawn from it at random and is found to be a rupee."],[" Then the chance that it is the only rupee coin in the purse,is "],[[" (a) "(1)/(n)," (b) "(2)/(n+1)," (c) "(1)/(n(n+1))," (d) "(2)/(n(n+1))]]

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