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Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

Grade 8 - Mathematics
4.11 Set Operations - Intersection

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

Example:
n(A) = 7, n(B) = 5 and n(AB) = 9 then find n(AB)
Solution:
n(AB) = n(A) + n(B) - n(AB).
= 7 + 5 - 9
= 12 - 9
= 3
n(AB) = 3


Directions: Solve the following problems. Also write at least five examples of your own.
Q 1: n(A) = 12, n(B) = 9 and n(AB) = 13 then find n(AB).
4
6
7
8

Q 2: n(A) = 15, n(B) = 10 and n(AB) = 16 then find n(AB).
9
7
6
8

Q 3: n(A) = 10, n(B) = 8 and n(AB) = 12 then find n(AB).
6
8
4
10

Q 4: n(A) = 9, n(B) = 9 and n(AB) = 10 then find n(AB).
8
16
6
18

Q 5: n(A) = 8, n(B) = 7 and n(AB) = 9 then find n(AB).
2
8
6
4

Q 6: n(A) = 13, n(B) = 15 and n(AB) = 16 then find n(AB).
12
11
13
10

Question 7: This question is available to subscribers only!

Question 8: This question is available to subscribers only!


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