The Stalinist command economy, in which market forces were suppressed and all orders for production and distribution came from the state authorities, survived in all its essential features until the fall of the Soviet regime in 1991. In the early stages of the communist economic revolution, Armenia underwent a fundamental transformation into a "proletarian" society. Between 1929 and 1939, the percentage of Armenias work force categorised as industrial workers grew from 13% to 31%. By 1935 industry supplied 62% of Armenias economic production. Highly integrated and sheltered within artificial barter economy of the Soviet system from the 1930s until the end of the communist era, the Armenian economy showed few signs of self-sufficiency at any time during that period. In 1988 Armenia produced only 0.9% of the net material product of the Soviet Union (1.2% of industry, 0.7% of agriculture). The republic retained 1.4% of total state budget revenue, delivered 63.7% of its NMP to other republics, and exported only 1.4% of what it produced to markets outside the Soviet Union.

How many years did it take for the percentage of Armenia's work force categorised as industrial workers to grow from 13% to 31%?
A: 10

As the campaigning season of 1789 began, Koca Yusuf Pasha, Grand Vizier of the Ottoman Empire, took steps to defend the provinces of Moldavia and Wallachia. He faced the prospect of offensives from two directions. To the northwest lay an Austrian army of 18,000 men under Coburg. Meanwhile, Suvorov was marching Russian troops into Moldavia from the northeast. Yusuf Pasha determined to attack the Austrian forces before they could link up with their Russian allies. To this end, he ordered Osman Pasha to lead an army of 30,000 men north to Focsani. The town was an important trade center strategically located on the border between Moldavia and Wallachia.Learning of the Ottoman approach, Coburg asked his Russian counterpart for assistance. Suvorov marched with 7,000 men. He left his position at Buirlad on July 28 and marched 40 miles in 28 hours to reach Coburg the next day on the Siret River.

How many is the difference between the number of men in the Army Pasha led and the number of men Suvorov amrched with?
A: 23000

The situation remained in stalemate for some time, with Charles of Blois as de facto duke, but with significant territory still controlled by the Montfortists. Outside events again began to have an effect on the conflict. A plague struck France and the king himself was captured by the English at the Battle of Poitiers in 1356. The French state was virtually paralysed. In 1362, when the younger John de Montfort reached 22 years of age, King Edward permitted him to return to Brittany. His return was conditioned by a covenant, the covenant not to marry without permission, given in pledge of several fortresses. On arrival, John attempted to reach agreement with Charles of Blois to make peace and share Brittany, but Charles's wife Joan urged him to resist and crush John. The war resumed in 1363 when Charles de Blois, assisted by Bertrand du Guesclin, had some successes, but when Bertrand left to take control of strongholds in Navarre and Normandy, Charles's advance halted at the unsuccessful siege of Becherel. Another opportunity to negotiate an agreement arose, but again Joan blocked negotiations. John de Montfort moved to besiege Auray with renowned English warlord John Chandos. Charles of Blois and Bertrand du Guesclin came to the rescue of the besieged city, but they were decisively defeated at the Battle of Auray on 29 September 1364. This battle marked the end of this long conflict: Charles of Blois was killed and Joan of Penthievre, finding herself a widow, saw her cause collapse. Du Guesclin was captured and ransomed by Charles V for 100,000 francs.

Who was Joan's husband?
A:
Charles