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18 May 2016, 11:21
Kudos
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I thought I'd start a thread for GMAT students and instructors to share the small but important lessons we learn about GMAT Quant each day. Reply to this thread, share something that you learned from your latest study session, and read other students' best tips!
I'll start: yesterday, one of my tutoring students taught me that PS 154 in the 2013/2015 Quantitative Review Book can be solved by using a weighted average strategy, like this one: https://www.manhattanprep.com/gre/blog/ ... e-or-less/ I had always thought of that as an 'algebra' word problem, but my student came up with a 1-minute, ultra-simple solution based on weighted average rules. If you have the Quantitative Review guide, try it out.
I'll start: yesterday, one of my tutoring students taught me that PS 154 in the 2013/2015 Quantitative Review Book can be solved by using a weighted average strategy, like this one: https://www.manhattanprep.com/gre/blog/ ... e-or-less/ I had always thought of that as an 'algebra' word problem, but my student came up with a 1-minute, ultra-simple solution based on weighted average rules. If you have the Quantitative Review guide, try it out.
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