Question

please solve this question​

Answer 1

Answer:

5

Step-by-step explanation:

Need the number of students studying History and Geography but not Language

=> need the number of students in L and M but not in N

The number of students in both L and M is 5+2.

However, the 2 corresponds to students also in N, so we don't want to count these.

Thus the number of students in both L and M but not in N is just 5.