Question on: WAEC Mathematics - 1997

A and B are two sets. The number of elements in A∪B is 49, the number in A is 22 and number in B is 34. How many elements are in A ∩ E?

A
105
B
27
C
15
D
12
Ask EduPadi AI for a detailed answer
Correct Option: E

Let x represent the intersection
34 - x + 22 - x + x = 49
  - x = 49 - 56; x = 7

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