This task involves creating questions from a given passage that involve some kind of complex reasoning (including numerical reasoning). 
The generated questions must require looking at more than one part of the passage to answer. Try to use a variety of reasoning types in your questions (some of the sample reasoning types are illustrated in the 'positive examples' field) and also have a variety of answer types (spans, numbers, dates). A span is a continuous phrase taken directly from the passage or question. In such questions, the answer spans are recommended to be five words. Questions with answer type "number", are expected to start with "How many". For instance, "How long did an event last?" can be phrased as "How many years did an event last?". To increase diversity, try to create more questions for which the answer will be multiple spans. Please create questions that require AT LEAST 2 arithmetic operations as illustrated in the 'positive examples' field. You are encouraged to try DIFFERENT COMBINATIONS of operations and not just limit to the combinations shown in those examples. The more challenging questions you create, the better it is.

Q: Passage: As of the census of 2010, there were 47,723 people, 17,816 households, and 11,722 families residing in the city. The population density was 1,754.6/sq mi (677.5/km²).  There were 19,806 housing units at an average density of 749.9 per square mile (289.6/km²).  The racial makeup of the city was 38.32% White (U.S. Census), 57.25% African American (U.S. Census), 1.25% Native American (U.S. Census), 1.85% Asian, 0.14% Pacific Islander (U.S. Census), 1.03% from Race (United States Census), and 1.09% from two or more races.  6.98% of the population were Hispanics in the United States or Latino (U.S. Census) of any race.

A: How many fewer households were there compared to housing units?
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Q: Passage: The Relief of Genoa took place between 28 March 1625 and 24 April 1625, during the Thirty Years' War. It was a major naval expedition launched by Spain against the French-occupied Republic of Genoa, of which the capital Genoa was being besieged by a joint Franco-Savoyard army composed of 30,000 men and 3,000 cavalry. In 1625, when the Republic of Genoa, traditionally an ally of Spain, was occupied by French troops of the Duke of Savoy, the city underwent a hard siege. It was known in Genoese governmental circles that one of the reasons why the Dutch government had offered their help to the Franco-Savoyan army was so that they could "hit the bank of the King of Spain". However, the Spanish fleet commanded by General Álvaro de Bazán, Marquis of Santa Cruz, came to the aid of Genoa and relieved the city. Returning its sovereignty to the Republic of Genoa and forcing the French to raise the siege, they consequently began a combined campaign against the Franco-Savoyan forces that had overrun the Genoese Republic one year before. The joint Franco-Piedmontese army was forced to leave Liguria and Spanish troops invaded Piedmont, thereby securing the Spanish Road. Richelieu's Invasion of Genoa and the Valtelline had resulted in his humiliation by the Spaniards.

A: Did the Franco-Savoyard army have more men or cavalry?
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Q: Passage: Playing in the snow in Baltimore, the Vikings sought out their first road win of the season. During the first half, Adrian Peterson injured his ankle and was dropped from the game. Despite taking the lead with a touchdown late in the fourth quarter, the Vikings were unable to hold on as the Ravens scored a game-winning touchdown with four seconds left. With the loss, the Vikings dropped to 3-9-1 and were officially eliminated from postseason contention.

A:
How many losses did the Vikings have before this game this season?
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