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# Do they expect us peons to use diagrams to do this madness?

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Eternal Intern
Joined: 07 Jun 2003
Posts: 467
Location: Lone Star State
Do they expect us peons to use diagrams to do this madness? [#permalink]

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16 Jul 2003, 10:31
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

Do they expect us peons to use diagrams to do this madness?

If a circle with a circumference of 20 has two overlapping arcs with length of 16 and 14, respectively. what is the LEAST possible total length of the overlap of the two arcs?

There are some questions like this on test day, but very annoying because it tests visual skills not math skills which I absolutely lack.

Curly
GMAT Instructor
Joined: 07 Jul 2003
Posts: 770
Location: New York NY 10024
Schools: Haas, MFE; Anderson, MBA; USC, MSEE
Re: My Nightmare from Satan at ETS1- Need Diagram! [#permalink]

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16 Jul 2003, 10:45
Curly05 wrote:
Do they expect us peons to use diagrams to do this madness?

If a circle with a circumference of 20 has two overlapping arcs with length of 16 and 14, respectively. what is the LEAST possible total length of the overlap of the two arcs?

There are some questions like this on test day, but very annoying because it tests visual skills not math skills which I absolutely lack.

Curly

Rather than complain about ETS (which will not change) why don't you just try to solve the problem. It is VERY easy and most people can do it in their heads.

1) draw a circle and give it circumfrence 20.
2) bold out an arc of 16. Note how much "free" circle you have left. This should give you a clue as to how much overlap you MUST have if you were to draw another arc of 14.

If you draw the darn thing, you do NOT have to "visualize" it.

If you go into the test with the mindset that ETS is unfair, then you will not have a heathly mind set for solving the problems.

Just my humble opinion.
_________________

Best,

AkamaiBrah
Former Senior Instructor, Manhattan GMAT and VeritasPrep
Vice President, Midtown NYC Investment Bank, Structured Finance IT
MFE, Haas School of Business, UC Berkeley, Class of 2005
MBA, Anderson School of Management, UCLA, Class of 1993

Eternal Intern
Joined: 07 Jun 2003
Posts: 467
Location: Lone Star State

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16 Jul 2003, 12:01
If a circle with a circumference of 20 has two overlapping arcs with length of 16 and 14, respectively. what is the LEAST possible total length of the overlap of the two arcs?

Okay you try to visualize a circle with overlapping arcs, what is that? I've never seen a description of that in my life.

Eternal Intern
Joined: 07 Jun 2003
Posts: 467
Location: Lone Star State
Can Anybody Draw A Diagram- So I can visualize it [#permalink]

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17 Jul 2003, 05:56
Thanks I really need your help.
Eternal Intern
Joined: 07 Jun 2003
Posts: 467
Location: Lone Star State

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30 Jul 2003, 11:16
Akami, I'm thirsty for some more
_________________

Ride em cowboy

Manager
Joined: 10 Jun 2003
Posts: 210
Location: Maryland

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30 Jul 2003, 12:01
"Unravel" the circle with circumference 20 into a line of length. Does this make it easier. Start from one end with a segment of 16. Now how can you place a segment of length 14 with the least overlap? Start from the other end! you will see that four untis of this smaller segment will not be overlapped, while 10 will be. Thus, the answer is 10.
Eternal Intern
Joined: 07 Jun 2003
Posts: 467
Location: Lone Star State

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30 Jul 2003, 12:40
Prakunda, time for a picture or mciatto you can draw a first one?
VT
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Ride em cowboy

30 Jul 2003, 12:40
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