A student scored an average of 80 marks in 3 subjects: Physics, Che – McqOptions

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1.	A student scored an average of 80 marks in 3 subjects: Physics, Chemistry and Mathematics. If the average marks in Physics and Mathematics is 90 and that in Physics and Chemistry is 70, what are the m
A.	60
B.	64
C.	72
D.	80
Answer» E.

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