Q: Australian historian Peter Shergold confirms the findings of many scholars that the standard of living for US industrial workers was higher than in Europe. He compares wages and the standard of living in Pittsburgh with Birmingham, England. He finds that, after taking into account the cost of living , the standard of living of unskilled workers was about the same in the two cities, while skilled workers had about twice as high a standard of living. The American advantage grew over time from 1890 to 1914, and there was a heavy steady flow of skilled workers from Britain to industrial America. Shergold revealed that skilled Americans did earn higher wages than the British, yet unskilled workers did not, while Americans worked longer hours, with a greater chance of injury, and had fewer social services. Nationwide from 1890 to 1914 the unionized wages in manufacturing rose from $17.63 a week to $21.37, and the average work week fell from 54.4 to 48.8 hours a week. The pay for all factory workers was $11.94 and $15.84 because unions reached only the more skilled factory workers.
How long did it take for American unionized wages to rise from $17.63 to $21.37?

A: from 1890 to 1914

Q: Sohn first competed in the 1,500 and 5,000 m, but turned to longer distances after winning an eight-mile race in October 1933. Between 1933 and 1936, he ran 12 marathons; he finished in the top three on all occasions and won nine. On November 3, 1935 in Tokyo, Japan, Sohn set a world record in the marathon with a time of 2:26:42. According to the International Association of Athletics Federations, this record remained unbroken until Sohn's own trainee, Suh Yun-Bok, won the 1947 Boston Marathon.
How many years did it take Sohn to finish 12 marathons?

A: 3

Q: According to police statistics, the most common complaint received by the Metropolitan Police Bureau in 2010 was housebreaking, with 12,347 cases. This was followed by 5,504 cases of motorcycle thefts, 3,694 cases of assault and 2,836 cases of embezzlement. Serious offences included 183 murders, 81 gang robberies, 265 robberies, 1 kidnapping and 9 arson cases. Offences against the state were by far more common, and included 54,068 drug-related cases, 17,239 cases involving prostitution and 8,634 related to gambling. The Thailand Crime Victim Survey conducted by the Office of Justice Affairs of the Ministry of Justice found that 2.7 percent of surveyed households reported a member being victim of a crime in 2007. Of these, 96.1 percent were crimes against property, 2.6 percent were crimes against life and body, and 1.4 percent were information-related crimes.
How many more murders were there compared to kidnappings and arson cases combined?

A:
173