TASK DEFINITION: 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.
PROBLEM: Passage: As of the census of 2000, there were 24,621 people, 9,029 households, and 6,284 families residing in the county.  The population density was 73 people per square mile (28/km²).  There were 12,064 housing units at an average density of 36 per square mile (14/km²).  The racial makeup of the county was 97.90% White (U.S. Census), 0.56% African American (U.S. Census), 0.15% Native American (U.S. Census), 0.28% Asian (U.S. Census), 0.02% Pacific Islander (U.S. Census), 0.36% from Race (United States Census), and 0.74% from two or more races. Hispanic (U.S. Census) or Latino (U.S. Census) of any race were 0.93% of the population. 21.3% were of English people, 16.5% Germans, 11.4% Irish people, 10.7% United States, 5.3% danish people and 5.3% Italian people ancestry according to Census 2000.

SOLUTION: How many in percent from the census weren't African American?

PROBLEM: Passage: In week 11, the Lions traveled to Arlington, Texas to play the Dallas Cowboys. The only score of the first quarter was a 1-yard TD catch by Dez Bryant of the Cowboys. In the second quarter the Lions got on the board with a 47-yard field goal, and took the lead with a 9-yard TD catch by Nate Burleson. After halftime, Leonard Davis of the Cowboys committed an offensive holding penalty in his own end zone, giving the Lions a safety. The Cowboys took the lead though with a 97-yard punt return by Bryan McCann, and added to it with a 3-yard catch by Miles Austin. The Lions responded with a 14-yard catch by Calvin Johnson. In the 4th quarter, Miles Austin caught another TD, this time from 4 yards out. Later, Jon Kitna sealed the Cowboys win with a 29-yard TD run. With the loss, not only did the Lions fall to 2-8, but they added to their already record setting 26 game road losing streak.

SOLUTION: How many yards did Bryant catch?

PROBLEM: Passage: The Royal Navy of Oman had 4,200 men in 2000, and is headquartered at Seeb. It has bases at Ahwi, Ghanam Island, Mussandam and Salalah. In 2006, Oman had 10 surface combat vessels. These included two 1,450-ton Qahir-class corvette corvettes, and 8 ocean-going patrol boats. The Omani Navy had one 2,500-ton Nasr al Bahr (L2) LSL (240 troops, 7 tanks) with a helicopter deck. Oman also had at least four landing craft. Oman ordered three Khareef-class corvette corvettes from the VT Group for £400 million in 2007. They are being built at Portsmouth. In 2010 Oman spent US$4.074 billion on military expenditures, 8.5% List of countries by military expenditure share of GDP. The sultanate has a long history of association with the British military and defence industry. According to SIPRI, Oman was the 23rd largest arms importer from 2012-2016.

SOLUTION:
How many corvette corvettes will Oman have after their 2007 order is complete?