On mixing two classes A and B of students having average marks 25 and – McqOptions

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1.	On mixing two classes A and B of students having average marks 25 and 40 respectively, the overall average obtained is 30. Find the ratio of the students in the classes A and B.
A.	0.0840277777777778
B.	0.213888888888889
C.	0.2125
D.	0.127777777777778
Answer» B. 0.213888888888889

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