SOLUTION: In a class of R student the average mark is Q and in another class of A student the average mark is B. What is the average mark of both classes
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Question 1151058: In a class of R student the average mark is Q and in another class of A student the average mark is B. What is the average mark of both classes Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! In a class of R student the average mark is Q and in another class of A student the average mark is B. What is the average mark of both classes
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(Q*R + A*B)/(R + A)
