Cud someone please explain this whats the difference if its a WA problem
Weight average is one of the method by which you can solve mixture problems !
To know more about it , take a look at this post in GMAT club : POST and then comeback to tackle this question!
Cud u give me a few egs
Cud u give me an eg
If you click on the link in the above post ; there are lot of examples in there!
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