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.
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Question: 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.

Answer: How many fewer households were there compared to housing units?


Question: Passage: Forecasting airline interest in larger-capacity models, Boeing announced the stretched 767-300 in 1983 and the extended-range 767-300ER in 1984. Both models offered a 20 percent passenger capacity increase, while the extended-range version was capable of operating flights up to . Japan Airlines placed the first order for the 767-300 in September 1983. Following its first flight on January 30, 1986, the type entered service with Japan Airlines on October 20, 1986. The 767-300ER completed its first flight on December 9, 1986, but it was not until March 1987 that the first firm order, from American Airlines, was placed. The type entered service with American Airlines on March 3, 1988. The 767-300 and 767-300ER gained popularity after entering service, and came to account for approximately two-thirds of all 767s sold.

Answer: How many months after the first flight of the 767-300 was the first flight of the 767-300ER?


Question: Passage: The Colts began the season on the road against the defending AFC champion Denver Broncos. The Colts began the game on offense, driving down to the Broncos' 36 yard line. However, following a delay of game penalty, they were forced to punt. Peyton Manning led the Broncos' offense on a 16 play drive, but would settle only for a field goal, giving Denver a 3-0 lead. An Andrew Luck interception on the Colts' ensuing offensive possession set the Broncos up at midfield and would lead to a touchdown on a pass from Manning to Julius Thomas to give the Broncos a 10-0 lead. After a three and out from the Colts' offense, Manning and the Broncos again take advantage and drive 83-yard to score on another Thomas touchdown reception. Late in the second quarter, the Broncos again scored on a touchdown pass from Manning to Thomas and extended Denver's lead to 24-0 with two minutes remaining in the half. The Colts put together an 8 play, 80-yard drive to end the half and scored their first points on a 9-yard run from Luck, making the score 24-7 in favor of Denver at halftime. The Broncos' began the second half on offense, though they were eventually forced to punt. After driving into the red zone on their first offensive possession of the half, the Colts' failed to convert a fourth down on the goal line and turned the ball over on downs. The Colts' next offensive possession would again stall in the red zone, with the Colts settling for an Adam Vinatieri field goal, cutting the Bronco lead to 24-10. A 48-yard drive early in the fourth quarter gave the Broncos as 31-10 lead after a Montee Ball touchdown run. The Colts would respond on their next drive with a touchdown pass from Luck to Dwayne Allen, cutting the Broncos' lead down to two scores. The Colts failed to take advantage of a recovered onside kick, after Luck threw an interception in Broncos' territory. After the Colts defense forced a three and out, Luck again drove the Colts down to the goal line, eventually scoring on a touchdown pass to Hakeem Nicks. After again stopping the Broncos' offense, the Colts received the ball with a little under three minutes remaining in the game and a change to tie the game. Though the Colts would drive into Bronco territory, the drive would end after a failed fourth down pass attempt from Luck to Reggie Wayne. With the loss, the Colts began the season with an 0-1 record.

Answer:
How many points was Denver ahead by at halftime?