Question

in a school there are 20 teachers who teach mathematics or physics .of these 12 each mathematics and 12 teach physics how many teach both subjects and how many teaches only physics​

Answer 1

Answer:

4 teachers teach both sub and 8 teachers teach only physics.

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

2 teachers can teach both and ten teachers can teach only physics.