Average - Data Intensity 1 :: Discussion


47.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 marks in Physics?
A.60
B.64
C.72
D.80
Answer:  Option  D
Explanation:

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Published by:Michael Daani

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