Question

Q2. In 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:

I think the answer is 8 teachers

Step-by-step explanation:

If 12 teachers teach physics and 4 teach both. That means 4 are left.

4+4=8.

Hope it helps.

Answer 2

Answer:

Step-by-step explanation:

First we have to do 12+4=16 then we have to do 20-16=4. Ans 4