Use the Venn diagram below to find the number of elements in the region.
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A) 14
B) 11
C) 33
D) 15

Question

Use the Venn diagram below to find the number of elements in the region. 
-
A) 14 
B) 11 
C) 33 
D) 15

Quizplus · Accepted Answer

The region contains all the elements that are in the intersection of the two circles. There are 10 elements in the left circle and 5 elements in the right circle, but only one element that is in both circles. Therefore, the total number of elements in the region is 10 + 5 - 1 = 14. Hence, the best choice is D.

Use the Venn Diagram Below to Find the Number of Elements