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Tucky
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On a partly cloudy day, Derek decides to walk back from work 09 Aug 2025, 07:20
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https://gmatclub.com/forum/members/member-73391.html Bunuel @KarishmaB @JeffTargetTestPrep

I also used this method, but I can't figure out why it is wrong.
I assumed that Speed and distance are proportional, hence Speed ratios will be valid for Distance as well.


plaverbach
Why we cannot use mixture tools here?
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Edit: it was already answered above! =)
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APram
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On a partly cloudy day, Derek decides to walk back from work 09 Aug 2025, 10:34
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Actually this has already been answered.
Also this is ratio of speed and not of distance.
In question, we are asked the ratio of distance
Tucky
https://gmatclub.com/forum/members/member-73391.html Bunuel @KarishmaB @JeffTargetTestPrep

I also used this method, but I can't figure out why it is wrong.
I assumed that Speed and distance are proportional, hence Speed ratios will be valid for Distance as well.


plaverbach
Why we cannot use mixture tools here?
Attachment:
photo5125353228333066530.jpg

Edit: it was already answered above! =)
Show Spoiler
Attachment:
GMAT-Club-Forum-beu1b36w.png
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