Problem: In the 17th century there were many of these independent local bodies levying their own taxes and administering justice. This early form of local government played a role in the development of a political system in the Netherlands that was decentralised and dependent on communal cooperation. Widespread experience with decentralized government was a factor in the formation of the Dutch Republic in the 16th and 17th centuries. The mandate of Rijkswaterstaat , established in 1798 under French rule, was to centralise water control in the Netherlands. Local water boards refused to give up their autonomy however, so Rijkswaterstaat ended up working alongside the local water boards. Today Rijkswaterstaat has responsibility for major water control structures and other infrastructure like motorways. By 1850 there were about 3,500 water boards in the country. In modern times water boards merged as they dealt with joint  interests. Mergers eventually reduced the number to 25 water boards in 2011. The tasks of water boards remain basically unchanged. Having a rich history dating back to the Middle Ages, they are the oldest governing bodies and the oldest democratic institutions in the Netherlands. Dutch water boards have their own coat of arms, a colourful reminder of their importance in Dutch history. The historic buildings that used to house the water boards are another legacy. Called gemeenlandshuis or waterschaphuis, these charming old buildings can be found at the heart of many Dutch towns.
Answer this question based on the article: How many more water boards were there roughly in 1850 than in 2011
A: 3475

Problem: The Hindus were found mainly in Jammu Division, where they constituted a little less than 60% of the population. In the Kashmir Valley, the Hindus represented "524 in every 10,000 of the population (i.e. 5.24%), and in the frontier wazarats of Ladhakh and Gilgit only 94 out of every 10,000 persons (0.94%)." In the same Census of 1901, in the Kashmir Valley, the total population was recorded to be 1,157,394, of which the Muslim population was 1,083,766, or 93.6% and the Hindu population 60,641. Among the Hindus of Jammu province, who numbered 626,177 (or 90.87% of the Hindu population of the princely state), the most important castes recorded in the census were "Brahmin (186,000), the Rajputs (167,000), the Khatri (48,000) and the Thakkars (93,000)."
Answer this question based on the article: How many percentages higher was the number of Hindus in the Jammu division than the Kashmir Valley?
A: 54.76

Problem: Antananarivo has been the largest city on the island since at least the late 18th century, when its population was estimated at 15,000. By 1810, the population had grown to 80,000 before declining dramatically between 1829 and 1842 during the reigns of Radama I and especially Ranavalona I. Because of a combination of war, forced labor, disease and harsh measures of justice, the population of Imerina fell from 750,000 to 130,000 during this period. In the final years of the Kingdom of Imerina, the population had recovered to between 50,000 and 75,000; most of the population were slaves who were largely captured in provincial military campaigns. In 1950, Antananarivos population was around 175,000. By the late 1990s the population of the metropolitan area had reached 1.4 million, and – while the city itself now has a population (2013) of about 1,300,000 – with suburbs lying outside the city limits it had grown to almost 2.1 million in 2013. The metropolitan area is thus home to 10 percent of the islands residents. Rural migration to the capital propels this growth; the citys population exceeds that of the other five provincial capitals combined.
Answer this question based on the article: In the late 1990s, how many more people lived in the metropolitan area than the city itself?
A:
100000