Problem: The main exporter of rhodium is South Africa (approximately 80% in 2010) followed by Russia. The annual world production is 30 tonnes. The price of rhodium is highly variable. In 2007, rhodium cost approximately eight times more than gold, 450 times more than silver, and 27,250 times more than copper by weight. In 2008, the price briefly rose above $10,000 per ounce ($350,000 per kilogram). The economic slowdown of the 3rd quarter of 2008 pushed rhodium prices sharply back below $1,000 per ounce ($35,000 per kilogram); the price rebounded to $2,750 by early 2010 ($97,000 per kilogram) (more than twice the gold price), but in late 2013, the prices were less than $1000.

How many dollars per ounce did the price of rhodium fall from it's peak in 2008 to its lowest point?
Answer: 9000

Problem: The U.S. Census Bureaus 2007–2011 American Community Survey indicated the median household income for Indianapolis city was $42,704, and the median family income was $53,161. Median income for males working full-time, year-round, was $42,101, compared to $34,788 for females. Per capita income for the city was $24,430, 14.7% of families and 18.9% of the citys total population living below the poverty line (28.3% were under the age of 18 and 9.2% were age 65 or older).

How many more dollars was the median income for females working full-time than Per capita income for the city?
Answer: 10358

Problem: Around 3 August García moved his entire army forward to Chunpich, and by October Spanish soldiers had established themselves near the source of the San Pedro River. By November Tzuktok' was garrisoned with 86 soldiers and more at Chuntuki; in that month García once again returned to Campeche. By December 1695 Ursúa was under pressure to complete the conquest of the Itza, and he approved the despatch of reinforcements along the Camino Real to join the main garrison. The reinforcements included 150 Spanish and pardo soldiers and 100 Maya soldiers, together with labourers and muleteers. An advance group of 150 mixed Maya and non-Maya soldiers met up with García at Campeche and proceeded southwards along the Camino Real towards the San Pedro River. The rest of the reinforcements did not leave Campeche until March 1696.

How many more Spanish and pardo soldiers were there than Maya soldiers in the reinforcements?
Answer: 50

Problem: According to available information, the about 1,000 refugees from the Hamidian massacres  mainly originated from Diyarbakir , Aintab and Kilis; only about 100 of them stayed. The next wave of Armenian refugees were the about 2,000 who fled the Adana massacre in 1909, most of whom returned to their ancestral homes in Adana within the same year. However, the largest wave of Armenian refugees - some of whom had come before and returned - were the nearly 9,000 who escaped the massive deportations, the horrific massacres and the Genocide perpetrated by the Ottomans and the Young Turks; about 1,300 of them decided to stay, while the others eventually made arrangements to settle in other countries. Those refugees came mainly from Adana and Seleucia , while there a significant number of them came from Sis, Marash, Tarsus, Caesarea, Hadjin and Aintab; smaller numbers came from other places, alphabetically: Adapazar, Adrianople , Afion-Karahisar, Alexandretta , Arapgir, Armash, Baghche, Bardizag, Balian Dagh, Biredjik, Bitlis, Brusa, Chemishgezek, Constantinople , Dörtyol, Edessa ,  Erzerum, Eskishehir, Everek, Ikonion , Jeyhan, Kesab, Kharpert, Kutahia, Malatia, Mersin, Misis, Musa Dagh , Nicomedia , Rhaedestos , Sasun, Sebastia , Shar, Sivri Hisar, Smyrna , Tokat , Trepizond, Van, Yerzinga, Yozgat and Zeitun.

How many more Armenian refugees who fled the Adana massacre were there compared to the refugees from the Hamidian massacres?
Answer:
1000