Question 1131715
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a)  P = {{{P(M n C)/P(C)}}} = {{{0.1/0.15}}} = {{{2/3}}} = 0.6667 = 66.67%  (approx.)


b)  P = P(M) + P(C) - P(M n C) = 0.25 + 0.15 - 0.10 = 0.30 = 30%.


c)  P = the COMPLEMENT to b) = 1 - 0.3 = 0.7 = 70%.
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Answered and solved.