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: Obesity is one of the leading preventable causes of death worldwide. A number of reviews have found that mortality risk is lowest at a BMI of 20–25 kg/m2 in non-smokers and at 24–27 kg/m2 in current smokers, with risk increasing along with changes in either direction. This appears to apply in at least four continents. In contrast, a 2013 review found that grade 1 obesity (BMI 30–35) was not associated with higher mortality than normal weight, and that overweight (BMI 25–30) was associated with "lower" mortality than was normal weight (BMI 18.5–25). Other evidence suggests that the association of BMI and waist circumference with mortality is U- or J-shaped, while the association between waist-to-hip ratio and waist-to-height ratio with mortality is more positive. In Asians the risk of negative health effects begins to increase between 22–25 kg/m2. A BMI above 32 kg/m2 has been associated with a doubled mortality rate among women over a 16-year period. Obesity in the United States, obesity is estimated to cause 111,909 to 365,000 deaths per year, while 1 million (7.7%) of deaths in Europe are attributed to excess weight.  On average, obesity reduces life expectancy by six to seven years, a BMI of 30–35 kg/m2 reduces life expectancy by two to four years, while severe obesity (BMI > 40 kg/m2) reduces life expectancy by ten years.

SOLUTION: What BMI reduces life expectancy for ten years, BMI of 30–35 kg/m2 or BMI > 40 kg/m2?

PROBLEM: Passage: Excluding Government owned housing housing, Dorchester has 15,918 Residential area including 4,344 or 27.3% Single-family detached home homes, 3,674 or 23.1% Multi-family residential homes, 3,919 or 24.6% three-family homes, and 3,981 or 25.0% Condominium units. The median sales price for all residential property types is 244,450. In 2013, there were 52 foreclosures petitions reported in Dorchester, representing 22.41% of the 232 foreclosures reported for the entire City Boston.  Subsequently, 37 out 147 distressed buildings documented in Boston are located in Dorchester.

SOLUTION: How many distressed buildings are not in Dorchester?

PROBLEM: Passage: Of the built up area, industrial buildings made up 1.7% of the total area while housing and buildings made up 10.7% and transportation infrastructure made up 7.3%.  Power and water infrastructure as well as other special developed areas made up 3.5% of the area while parks, green belts and sports fields made up 1.5%.  Out of the forested land, 38.8% of the total land area is heavily forested and 1.2% is covered with orchards or small clusters of trees.  Of the agricultural land, 22.0% is used for growing crops and  12.1% is pastures.  Of the water in the municipality, 0.2% is in lakes and 0.6% is in rivers and streams.

SOLUTION:
How many percent higher was housing and building than industrial buildings and transportation infrastructure?