Answer:
12%
Explanation:
Given,
% of leather sofas = p(A) = 30% = 30/100 = 0.3
% of leather sofas that are black = p(B) = 40% = 40/100 = 0.4
The percentage of total sofas made from leather = p(A) * p(B)
= 0.3 * 0.4
= .12
= 12%
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