If the average marks of three separate groups of 50, 56 and 44 student – McqOptions

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1.	If the average marks of three separate groups of 50, 56 and 44 students are 55, 52 and 40 respectively, then the average marks of all the students will be
A.	49.48
B.	49.84
C.	50.48
D.	49
Answer» B. 49.84

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