In a school there are 20 teachers who teach English or Physics, 12 teach English and 4 teach both English and physics. How many teachers teach Physics ?
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There your Answer
Step-by-step explanation:
In a school there are teacher = 20
the teacher that teach English = 12
and the teacher that teach both subject = 4
= 20-12=8 , 8-4=4
the teacher that teach physics =4
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