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.

Passage: Coming back from a blowout win against Tennessee, the Texans went to face an undefeated Chiefs team. However, tragedy struck when DE J. J. Watt  suffered a season ending leg injury in the first quarter that was later revealed to be a tribal plateau fracture to his left leg.   OLB Whitney Mercilus also suffered a season ending  pectoral injury.   Taking advantage of the Watt injury, the Chiefs jumped out to a 16-0 lead 26 minutes into the game. Houston came within 6 points of the lead early in the fourth quarter, but the Texans defense could not keep up with the Chiefs offense. The Chiefs won by 8 points and the Texans fell to 2-3 on the season. Watt and Mercilus ended up having a major impact on the team, the team going 2-10 without them (including the Chiefs game) and 2-2 with them.
Going in to the game, how many games had the Chiefs lost in the season?

Passage: Coming off their dominating divisional road win over the Bills, the Jets went home for a Week 5 interconference duel with the Minnesota Vikings on Monday night. New York took flight in the first quarter as kicker Nick Folk made a 25-yard field goal. The Jets added onto their lead in the second quarter as Folk booted a 53-yard and a 22-yard field goal. New York continued to build their lead in the third quarter as Folk nailed a 34-yard field goal. The Vikings answered with quarterback Brett Favre completed a 37-yard touchdown pass to wide receiver Randy Moss, yet the Jets came right back with Folk's 31-yard field goal. After the match was delayed due to adverse weather conditions, Minnesota began to strike back in the fourth quarter as Favre connected with wide receiver Percy Harvin on a 34-yard touchdown pass (with a failed 2-point conversion). Afterwards, New York answer as running back Shonn Greene got a 23-yard touchdown run. The Vikings tried to rally as Favre found Harvin again on an 11-yard touchdown pass, yet the Jets put the game away as cornerback Dwight Lowery returned an interception 26 yards for a touchdown.
How long were each of Folk's field goals?

Passage: In the Vietnam air war radar missile kill reliability was approximately 10% at shorter ranges, and even worse at longer ranges due to reduced radar return and greater time for the target aircraft to detect the incoming missile and take evasive action. At one point in the Vietnam war, the U.S. Navy fired 50 AIM-7 Sparrow radar guided missiles in a row without a hit. Between 1958 and 1982 in five wars there were 2,014 combined heat-seeking and radar guided missile firings by fighter pilots engaged in air-to-air combat, achieving 528 kills, of which 76 were radar missile kills, for a combined effectiveness of 26%. However, only four of the 76 radar missile kills were in the beyond-visual-range mode intended to be the strength of radar guided missiles. The United States invested over $10 billion in air-to-air radar missile technology from the 1950s to the early 1970s. Amortized over actual kills achieved by the U.S. and its allies, each radar guided missile kill thus cost over $130 million. The defeated enemy aircraft were for the most part older MiG-17s, -19s, and -21s, with new cost of $0.3 million to $3 million each. Thus, the radar missile investment over that period far exceeded the value of enemy aircraft destroyed, and furthermore had very little of the intended BVR effectiveness.

Between 1958 and 1982 in 5 wars, how many percent of the missle firings were not effective?