Solve this:

Solve this: Question No. 15 Use the given information to answer the next question. A = {x: x is a multiple of 20} Which elements are contained in the set (A n B)'? {5, 6, 7, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20} O {5, 6, 7, 9, 10, 11, 13, 14, 15, 16, 17, 18, 19, 20} O {5, 6, 7, 9, 10, 11, 13, 14, 15, 16, 17, 18} O 4:00 pm Finish

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Please find below the solution to the asked query:

Universal set is given byξ=x:xN, 5x20ξ=5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20A=x:x is multiple of 4, 5x20 A=8,12,16,20B=x:xN, 5x12B=5,6,7,8,9,10,11,12NowAB=A and B=8,12AB'=ξ-AB=5,6,7,9,10,11,13,14,15,16,17,18,19,20...OptionB

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Answer is B
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