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

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Eternal Intern
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This problem absolutely pissed me off. I can tell you I [#permalink] New post 15 Jul 2003, 19:16
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?

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 [#permalink] New post 15 Jul 2003, 19:51
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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 [#permalink] New post 16 Jul 2003, 10:50
Answer:

1 inch = 60 meters

4pi = 2^2pi

2 inches = 120 meters

120^2pi = 14400pi
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 [#permalink] New post 18 Jul 2003, 07:07
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
  [#permalink] 18 Jul 2003, 07:07
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This problem absolutely pissed me off. I can tell you I

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