Question

In a school there are 20 teachers who teach Mathematics or physics.Of these 12 teach Mathematics and 4 teach both Physics and Mathematics
How many teach physics?

Answer 1

Answer:

8 teachers

Step-by-step explanation:

8 because 12-4=16 and 16-12=4

4+4=8

Answer 2

Answer:

8 teacher

Step-by-step explanation:

Number of teachers teach physics = 8