[AllenP]

Spoiler

The wall is already been built so 0

 

[chean1210]

Spoiler

No time. It is already built.

 

[JTeyssier]

Spoiler

20 hours

 

[Margaret 9]

Spoiler

No time at all, it's already been built!

 

[Harvey35Barney14]

Spoiler

No hours as it’s already built

 

[johnsiwek]

Spoiler

Question is does it take not will it take theoretically does mean new wall so 20 not zero

 

[Fernsie]

Spoiler

20 hours

 

[JenH23]

Spoiler

None - wall is already built

 

[Victor Jackson]

Spoiler

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!!!

 

[Buzzy]

Spoiler

No time as the wall is already built

 

[Dazzasboats]

Spoiler

They can't build the exact same wall as it is already built

 

[Dizzy]

Spoiler

Twenty hours

 

[BJM]

Spoiler

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.

 

[Dizzy]

Spoiler

Wall already built so no time

 

[Muffin11]

Spoiler

20 hours

 

[The Moth]

Spoiler

20 hours

 

[Rowiee]

Spoiler

20 hours.

 

[steve.bryce]

Spoiler

10 hours

 

[burlighs007]

Spoiler

As the wall is already built, it would require exactly 0 men or hours to complete

 

[Helen171]

Spoiler

0 hours, the wall is already built