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26 - Mathematics M1.SE.2 - Set Operations & Notation

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✅EvaluateQuestion 1 of 21

A = {1, 2}, B = {2, 3}. A ∪ B?

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✅EvaluateQuestion 2 of 21

A = {1, 2}, B = {2, 3}. A ∩ B?

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✅EvaluateQuestion 3 of 21

Two sets with no common element are

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✅EvaluateQuestion 4 of 21

If U = {1. 10} and A = {2,3,5,7}, then A′ =

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✅EvaluateQuestion 5 of 21

n(A) = 12, n(B) = 8, n(A ∩ B) = 3. n(A ∪ B)?

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✅EvaluateQuestion 6 of 21

{1, 2, 3} = {3, 1, 2}? True or false?

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✅EvaluateQuestion 7 of 21

What is A − B if A = {1,2,3,4} and B = {2,4,6}?

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✅EvaluateQuestion 8 of 21

At a Castries event, 18 like steel pan, 22 like calypso, 7 like both. Total who like at least one?

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✅EvaluateQuestion 9 of 21

In Q8, how many like NEITHER (out of 50 attendees)?

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✅EvaluateQuestion 10 of 21

If A ∪ B = {1, 2, 3, 4} and A ∩ B = {2}, possible A and B are

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✅EvaluateQuestion 11 of 21

For U = {a,j}, A = {a, b, c, d}, B = {c, d, e, f}, find (A ∪ B)′.

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✅EvaluateQuestion 12 of 21

Sets {1, 2, 3} and {a, b, c} are

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✅EvaluateQuestion 13 of 21

In a school, 60 take Math, 40 take Physics, 25 take both. How many take ONLY Math?

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✅EvaluateQuestion 14 of 21

If A ⊂ B then A ∩ B equals

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✅EvaluateQuestion 15 of 21

In a Bahamas survey: 80 like steel pan, 65 like soca, 45 like reggae. 30 like steel pan and soca, 25 like soca and reggae, 20 like all three. If 100 people surveyed, how many like NONE?

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✅EvaluateQuestion 16 of 21

n(A)=20, n(B)=30, n(A ∪ B)=30. n(A ∩ B)?

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✅EvaluateQuestion 17 of 21

If A and B are disjoint and n(A ∪ B) = 25, then n(A) + n(B) =

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✅EvaluateQuestion 18 of 21

A = {x: x ≤ 10, x even}, B = {x: x ≤ 10, x prime}. n(A ∩ B)?

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✅EvaluateQuestion 19 of 21

In a Bridgetown class of 40: 28 study French, 22 study Spanish, x study both. If 8 study NEITHER, find x.

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✅EvaluateQuestion 20 of 21

For sets A and B, which is ALWAYS true?

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✅EvaluateQuestion 21 of 21

In a Bahamas market, 40 sell mangoes, 35 sell pineapples, 18 sell both. How many sell ONLY pineapples?

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✅EvaluateQuestion 1 of 21

A = {1, 2}, B = {2, 3}. A ∪ B?

0 / 1 marks

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