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Anyone solve this un ???

Forums: Riddles
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Marts
 
Reply Mon 1 Mar, 2004 02:31 pm
Assume the World weighs One Trillion Tons (Imperial).

A wall is built around the circumference of the globe (using the same value, i.e. 4,000 miles).

The wall uses bricks of 9" in length and 4.5" in height to an overall height of 6 feet.

Each bricks weighs 5 lbs.

How much does the Earth weigh AFTER the material for the bricks has been removed?

Marts
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Type: Discussion • Score: 1 • Views: 1,087 • Replies: 4
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hello
 
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Reply Mon 1 Mar, 2004 02:34 pm
well if you build a wall around the earth using material from the earth, then the total mass would not change...
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kev
 
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Reply Mon 1 Mar, 2004 02:50 pm
didn't take long to solve this un did it marts?
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Marts
 
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Reply Mon 1 Mar, 2004 02:57 pm
kev wrote:
didn't take long to solve this un did it marts?


Compared to the great wall of china - nope Laughing
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Gouki
 
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Reply Mon 1 Mar, 2004 07:21 pm
hello wrote:
well if you build a wall around the earth using material from the earth, then the total mass would not change...

ha, clever
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