Asked by james
in a science class,65 student study physics while 40 study chemistry.if there are 93 student in the class,how many student study both physics and chemistry?
Answers
Answered by
bobpursley
93=N(c)+N(p)-N(c,p)
93-65-40=-N(c,p)
N(c,p)=12
93-65-40=-N(c,p)
N(c,p)=12
Answered by
akram
12
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