Question

Question 1 : If U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}, A = {1, 4, 7, 10}, B = {2, 5, 8}. Find
A
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∩
B
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A�??∩B�??

{1, 3, 6, 9}
{1,3, 7 8,10}
{2, 4, 6, 8, 10}
{1, 3, 4, 5, 6}
Question 2 : A market survey was conducted to determine consumer acceptance for a group of products. The survey revealed the following about three products A, B, & C. of 155 people interviewed, it was discovered that,74 like product A, 81 like product B,60 like product C,27 like product A & B, 25 like products A & C,35 like products B & C and 12 did not like any of the three products.Determine the number of people out of those interviewed that liked all three products. Determine the number of people out of those interviewed that liked all three products.
8
7
15
10