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# This problem absolutely pissed me off. I can tell you I

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Eternal Intern
Joined: 07 Jun 2003
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Location: Lone Star State
This problem absolutely pissed me off. I can tell you I [#permalink]

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15 Jul 2003, 20:16
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

This problem absolutely pissed me off. I can tell you I logically tried everything and you know what a computer test doesn't tell you that this is an end of section problem.

A pilot surveys a flat circular area represented by 4 pi square inches on a map. If one inch on the map represents 60 miles, how many square miles does the pilot survey?

VT

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Director
Joined: 03 Jul 2003
Posts: 651

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15 Jul 2003, 20:51
My Ans:

1 inch = 60 miles
1 sq inch = 60 * 60 = 3600 sq miles.
Area covered in the map = 4pi
Area coverd = 4* pi * 3600 = 14400pi sq miles

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Manager
Joined: 03 Jun 2003
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Location: Uruguay

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16 Jul 2003, 11:50

1 inch = 60 meters

4pi = 2^2pi

2 inches = 120 meters

120^2pi = 14400pi

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Manager
Joined: 24 Jun 2003
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Location: Moscow

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18 Jul 2003, 08:07
I heard that approximation of 3 for 'pi' is enough for GMAT. Therefore, 'a pilot surveys a flat circular area represented by 4 pi square inches on a map' can be translated as he surveys 12 sq inches.

Draw a 3 by 4 ractangular for clarity. Now, if 1 inch = 60 miles, 3=180 and 4=240. Multiplying one side of a ractangular by another will give us its area. Thus, the answer is 43,200 sq. ml

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18 Jul 2003, 08:07
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# This problem absolutely pissed me off. I can tell you I

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