A purse contains n coins of unknown values A coin is drawn from it at random and is found - Maths - Probability

Question

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+1)
B 2/22
C 2/n(n+1)
D 1/n(n+1)

Anuradha Sharma · Accepted Answer

Number of coins = nIf 1 coin is drawn then probability of drawing it from n coin = 1nNow probability of drawing rest of the n-1 coin fromn coin = n-1nBut after this we cannot find the asked because we have not sufficient data

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 isA. 1/(n+1)B. 2/22 C.2/n(n+1)D.1/n(n+1)

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+1)
B. 2/2²
C.2/n(n+1)
D.1/n(n+1)