Problem: The original PowerBook 100, 140, and 170 were replaced by the PowerBook 145 (updated to the PowerBook 145B in 1993), PowerBook 160, and PowerBook 180 in 1992. The 160 and 180 having video output allowing them to drive an external monitor. In addition, the PowerBook 180 had a superb-for-the-time active-matrix grayscale display, making it popular with the Mac press. In 1993, the PowerBook 160 was the first PowerBook with a color screen, later followed by the PowerBook 180. In 1994, the last true member of the 100-series form factor introduced was the PowerBook 150, targeted at value-minded consumers and students. The PowerBook 190, released in 1995, bears no resemblance to the rest of the PowerBook 100 series, and is in fact simply a Motorola 68LC040-based version of the PowerBook 5300 (and the last Macintosh model to utilize a Motorola 68k-family processor). Like the 190, however, the 150 also used the 5300 Integrated Drive Electronics-based logic-board architecture. From the 100s 68000 processor, to the 190s 68LC040 processor, the 100 series PowerBooks span the entire Apple 68K line, with the 190 even upgradable to a PowerPC processor.
Answer this question based on the article: How many powerbooks used the Integrated Drive Electronics-based logic-board architecture?
A: 2

Problem: The U.S. Census Bureaus 20072011 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).
Answer this question based on the article: How many more dollars was the median household income than the Per capita income for the city?
A: 18274

Problem: The Livonian War was fought for control of Old Livonia , when the Tsardom of Russia faced a varying coalition of Denmark-Norway, the Kingdom of Sweden, and the Union of the Grand Duchy of Lithuania and the Kingdom of Poland. During the period 1558-1578, Russia dominated the region with early military successes at Dorpat and Narva. Russian dissolution of the Livonian Confederation brought Poland-Lithuania into the conflict, while Sweden and Denmark both intervened between 1559 and 1561. Swedish Estonia was established despite constant invasion from Russia, and Frederick II of Denmark bought the old Bishopric of Osel-Wiek, which he placed under the control of his brother Magnus of Holstein. Magnus attempted to expand his Livonian holdings to establish the Russian vassal state Kingdom of Livonia, which nominally existed until his defection in 1576. In 1576, Stefan Batory became King of Poland as well as Grand Duke of Lithuania and turned the tide of the war with his successes between 1578 and 1581, including the joint Swedish-Polish-Lithuanian offensive at the Battle of Wenden. This was followed by an extended campaign through Russia culminating in the long and difficult siege of Pskov. Under the 1582 Truce of Jam Zapolski, which ended the war between Russia and Poland-Lithuania, Russia lost all its former holdings in Livonia and Polotsk to Poland-Lithuania. The following year, Sweden and Russia signed the Truce of Plussa with Sweden gaining most of Ingria and northern Livonia while retaining the Duchy of Estonia.
Answer this question based on the article: How many years spanned these events?
A:
34