The peasants would be unable to provide enough for the quotas and so their goods were simply taken away from them and instead were given to the cities and the military. Millions of peasants as a result would starve to death and would end up moving to the cities where all of the food was being sent.
Mercantilism created competition between companies, states, and countries. My teacher once gave me the example of a tree cutter making tables. It was about who makes the most profit.
I think it is d if I'm wrong I'm sorry
assuming efficiency of each man to dig trench, in one day, for one hour is constant,

so one man, working for one hour in one day can dig 1.5 m
so 8 men, working 3 hours a day and will take, say $d$ number of days and efficiency will be constant. so,
$\frac32=\frac{220}{8\times3\times d}$
$\implies d=\frac{55}9=6.12$
Answer:
After the war Germany was divided into four temporary occupation zones, roughly based on the locations of the Allied armies. The German capital, Berlin, was also divided into four sectors: the French sector, British sector, American sector and the Soviet sector.