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(Solved): Q.31 There are two identical locks with two identical keys and the key are among six different ones ...
Q.31 There are two identical locks with two identical keys and the key are among six different ones which a person carries in his pocket. In hurry he drops one key somewhere. Then the probabilty that the locks can still opened by drawing one key at random is equal to (a)
(1)/(3)(b)
(5)/(6)(c)
(1)/(12)(d)
(1)/(30)[GATE]
