Hi voccubd,
Before I jump in to solve this question, let me provide you a brief explanation of how to approach weighted average questions on the GMAT. Weighted average questions can be easily solved by making use of thealligation/mixture diagram givenbelow.
![Mixtures 1.png]( "Mixtures 1.png")
Mixtures 1.png [ 8.12 KiB | Viewed 26 times ]
Putting in values in the alligation/mixture diagram and subtracting along the diagonals gives us a ratio in which two quantities are mixed. This ratio can now be used to find out what specific amounts
...
Attachments![Mixtures.png]( "Mixtures.png")
Mixtures.png [ 6.3 KiB | Viewed 26 times ]
Before I jump in to solve this question, let me provide you a brief explanation of how to approach weighted average questions on the GMAT. Weighted average questions can be easily solved by making use of thealligation/mixture diagram givenbelow.
Attachment:
Mixtures 1.png [ 8.12 KiB | Viewed 26 times ]
Putting in values in the alligation/mixture diagram and subtracting along the diagonals gives us a ratio in which two quantities are mixed. This ratio can now be used to find out what specific amounts
...
Attachments
Mixtures.png [ 6.3 KiB | Viewed 26 times ]
