Given, total students = 70
M=40; P= 35; C = 30 [Using first alphabet of all subjects]
P+C+M=15
Now, we can solve it by using Venn diagram. Let depict it.
We let the number of students
who study exactly two subjects are x, y & z.
We have to find out the value of (x + y + z)
According to the question
The number of students studying exactly two subjects is 5.