1.

The probabilities of a problem being solved by two students are \[\frac{1}{2},\frac{1}{3}\]. Then the probability of the problem being solved is                                                                 [Pb. CET 2001]

A.                 \[\frac{2}{3}\]       
B.                 \[\frac{4}{3}\]
C.                 \[\frac{1}{3}\]       
D.                 1
Answer» B.                 \[\frac{4}{3}\]


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