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.

[EX Q]: Passage: Abortion rates also vary depending on the stage of pregnancy and the method practiced. In 2003, the Centers for Disease Control and Prevention (CDC) reported that 26% of reported legal induced abortions in the United States were known to have been obtained at less than 6 weeks gestation, 18% at 7 weeks, 15% at 8 weeks, 18% at 9 through 10 weeks, 9.7% at 11 through 12 weeks, 6.2% at 13 through 15 weeks, 4.1% at 16 through 20 weeks and 1.4% at more than 21 weeks. 90.9% of these were classified as having been done by "curettage" (Suction-aspiration abortion, dilation and curettage, dilation and evacuation), 7.7% by "medical abortion" means (mifepristone), 0.4% by "instillation abortion" (saline or prostaglandin), and 1.0% by "other" (including hysterotomy abortion and hysterectomy). According to the CDC, due to data collection difficulties the data must be viewed as tentative and some fetal deaths reported beyond 20 weeks may be natural deaths erroneously classified as abortions if the removal of the dead fetus is accomplished by the same procedure as an induced abortion.
[EX A]: At what ages were the least amount of abortions obtained?

[EX Q]: Passage: Worldwide sales of hybrid vehicles produced by Toyota reached 1 million vehicles by May 31, 2007, and the 2 million mark was reached by August 2009, with hybrids sold in 50 countries. The 5 million hybrid sales milestone was reached in March 2013. During 2012, Toyota and Lexus hybrid models sold more than 1 million units a year for the first time, with 1.219 million units sold. During 2013, TMC sold 1.279 million units, and the 6 million sales milestone was achieved in December 2013, just nine months after its latest million unit milestone. The 7 million sales mark was reached in September 2014, again, selling one million hybrids in nine months, and the 8 million sales milestone was achieved in July 2015, just 10 months after the previous million-unit milestone. The 9 million sales mark was reached in April 2016, again, selling one million hybrids in just nine months, and the 10 million milestone in January 2017, one more time nine months later. Toyota estimates that up to January 31, 2017, its hybrids have saved about 7.66 billion U.S. gallons of gasoline (29 billion liters) compared to the amount used by gasoline-powered vehicles of similar size, and have emitted approximately 77 million fewer tons of CO2 emissions than would have been emitted by gasoline-powered vehicles of similar size and driving performance.
[EX A]: Did it take longer to go from 6 - 7 million units sold, or from 7 - 8 million units sold?

[EX Q]: Passage: The car also won the 1961 British Saloon Car Championship season, 1962 British Saloon Car Championship season, 1969 British Saloon Car Championship season, 1978 British Saloon Car Championship season and 1979 British Saloon Car Championship season, as well as the British Rally Championship in 1962, 1963 and 1970, the European Rally Championship in 1965 and 1966, and won the Finnish Rally Championship in 1965 and 1966. Minis also won the 1965 Lowood 4 Hour endurance race, and the final Finnish Grand Prix in 1963. The Cooper S also had some success in the European Touring Car Championship, winning in 1964 and 1968, the Guia Race of Macau (a 1-2-3 finish in 1965, a 1-2 finish in 1970 and a win in 1972), and the Australian Touring Car Championship, winning its class in 1962, 1963, 1964, 1966, 1967 and 1968. A further title was the 1971 Sun-7 Chesterfield Series. The Mini also enjoyed class wins at the 1963 Armstrong 500, repeating this feat every year until 1969 Hardie-Ferodo 500, and having class wins at the 1964, 1965 and 1971 Sandown 250, and Six Hour Le Mans in 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970 and 1972, as well as the 1971 Phillip Island 500K. The car also won the Welsh Sports and Saloon Car Championship in 1998. Mini Leyland came 4th place in the under-2-litre category in the 1966 Trans-Am season, 1967 Trans-Am season and 1969 Trans-Am seasons, improving to 3rd in 1970 Trans-Am season.
[EX A]:
How many British Saloon Car Championship seasons were won before 1970?