The wall is already been built so 0
 
No time. It is already built.
 
20 hours
 
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No time at all, it's already been built!
 
No hours as it’s already built😃
 
Question is does it take not will it take theoretically does mean new wall so 20 not zero
 
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20 hours
 
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None - wall is already built
 
The wall is already built, but if only five workers were to attempt a similar build, their union would not let them.
The ten men set a model!!!
 
No time as the wall is already built
 
They can't build the exact same wall as it is already built
 
Twenty hours
 
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20 hours 🤣

So…. Using our math…
Time taken by 10 men to build the wall is 10 hours. So 1 hour each on average. taken by 5 men which is half the number or men it will take double the time that it took the 10 men which is 10 hrs x 2 = 20 hours.
 
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Wall already built so no time
 
20 hours
 
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20 hours
 
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20 hours.
 
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10 hours
 
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As the wall is already built, it would require exactly 0 men or hours to complete
 
0 hours, the wall is already built
 

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