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Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

Grade 8 - Mathematics
4.10 Set Operations - Union

n(AB) = n(A) + n(B) - n(AB)

Example:
n(A) = 5 and n(B) = 6 and n(AB) = 3 find n(AB)
Solution:
n(AB) = n(A) + n(B) - n(AB)
= 5+6-3
= 11-3
n(AB) = 8.


Directions: Solve the following problems. Also write at least five examples of your own and represent them in venn diagram.
Q 1: n(A) = 9 and n(B) = 5 and n(AB) = 4 find n(AB)
10
6
8
12

Q 2: n(A) = 4 and n(B) = 5 and n(AB) = 6 find n(AB)
6
4
7
3

Q 3: n(A) = 6 and n(B) = 3 and n(AB) = 5 find n(AB)
4
5
7
6

Q 4: n(A) = 8 and n(B) = 3 and n(AB) = 2 find n(AB)
7
N0ne of these
11
9

Q 5: n(A) = 10 and n(B) = 4 and n(AB) = 3 find n(AB)
11
12
8
6

Q 6: n(A) = 6 and n(B) = 8 and n(AB) = 4 find n(AB)
10
14
6
8

Question 7: This question is available to subscribers only!

Question 8: This question is available to subscribers only!


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