How many numbers are in the set B∩(∼A) ?

Question

Set A contains all positive odd integers between 2 and 18.

Set B contains all positive integers that are less than 18.

Answer 1

Set A = {3,5,7,9,11,13,15,17}

So Set (~A) = {1,2,4,6,8,10,12,14,16}

Set B = {1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17}

B AND (~A) is the intersection (overlap) of Set B and Set (~A)

B AND (~A) = {1,2.4,6,8,10,12,14,16} = (~A)