engineering recuitment GATE IN Test Series 2023-24 Mock Test Engineering Mathematics Probability and Statistics
There are two identical locks, with two identical keys and the keys are among the six different ones which a person carries in his pocket. In a hurry he drops one key somewhere. Then the probability that locks can still be opened by drawing one key at random is equal to
1
1/3
2
5/6
3
1/30
4
1/12