1.

A problem in Mathematics is given to 3 students A, B and C. If the probability of A solving the problem is \(\dfrac{1}{2}\) and B not solving it is \(\dfrac{1}{4}\) and the whole probability of the problem being solved is \(\dfrac{63}{64}\), then what is the probability of solving it by C?

A. \(\dfrac18\)
B. \(\dfrac1{64}\)
C. \(\dfrac78\)
D. \(\dfrac12\)
Answer» D. \(\dfrac12\)


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