Concept:The intersection of two sets, written as
M∩N, contains only the elements that belong to both sets at the same time.
Explanation:In the Venn diagram, the two circles represent sets
M and
N.
The overlapping region of
M and
N is the part common to both circles.
From the diagram, this common region contains the elements
2 and
7.
No other element appears in both sets simultaneously.
Therefore, the intersection is written as
M∩N={2,7}.
Note that the union,
M∪N, would list every element from both sets only once, but the question asks only for the common elements.
Answer:B.
{2,7}
