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by jean.spellman
Mon May 13, 2013 8:28 pm
 
Forum: GMAT Official Practice Test Math
Topic: Running at their respective constant rates, Machine X takes
Replies: 33
Views: 17274
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Re: Running at their respective constant rates, Machine X takes

Hi all,

Forgive me if this is a stupid question, but how do you get from:
3( W/T + W/(t-2) )

to

3W( 2T-1 ) / (T- 2)? (see rash.patil answer from 2010)

The answer(s) otherwise make sense, but I'm getting stopped at this step. Thank you.
by jean.spellman
Thu May 30, 2013 1:36 pm
 
Forum: GMAT Official Practice Test Math
Topic: Running at their respective constant rates, Machine X takes
Replies: 33
Views: 17274
Jump to post

Re: Running at their respective constant rates, Machine X takes

Thanks, RonPurewal! It was the later...and that's what I thought was going on, but regardless, your explanation helped :)