Question

An oil exploration company intends to drill an exploratory well in each of two geologically unrelated regions A and
B. If the probability of finding oil in significant quantities is assessed as ⅛ for area A and 1/10 for area B, what is the probability that at least one of the wells will be successful?

A 17/89
B 17/80
C 64/80
D 1/80
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