You will be given a definition of a task first, then an example. Follow the example to solve a new instance of the task.
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: The outbreak of the Seven Years' War in Europe in 1756 resulted in renewed conflict between French and British forces in India. The Third Carnatic War spread beyond southern India and into Bengal where British forces captured the French settlement of Chandernagore in 1757. However, the war was decided in the south, where the British successfully defended Madras, and Sir Eyre Coote decisively defeated the French, commanded by Comte de Lally at the Battle of Wandiwash in 1760. After Wandiwash, the French capital of Pondicherry fell to the British in 1761. The war concluded with the signing of the Treaty of Paris in 1763, which returned Chandernagore and Pondichery to France, and allowed the French to have "factories" in India but forbade French traders from administering them. The French agreed to support British client governments, thus ending French ambitions of an Indian empire and making the British the dominant foreign power in India.
Solution: Which french settlement did the British capture first, Chandernagore or Pondicherry?
Why? This is a good question since it involves a comparison around a particular event, "British capturing the French settlement", which requires looking at more than a single sentence.

New input: Passage: Documentation of deaths was poor during the Great Frost. Cemeteries provide fragmentary information, e.g., during February and March 1740, 47 children were buried in St. Catherine's parish. The normal death rate tripled in January and February 1740, and burials averaged out about 50% higher during the twenty-one-month crisis than for the years 1737-1739, according to Dickson. Summing up all his sources, Dickson suggests two estimates:1) that 38% of the Irish population died during the crisis, and2) that between 13-20% excess mortality occurred for 1740-1741. Based on contemporary accounts and burial parish records, famine-related deaths may have totaled 300,000-480,000 in Ireland, with rates highest in the south and east of the country. This was a proportionately greater toll than during the most severe years of the Great Famine . That famine, however, was unique in "cause, scale and timing," persisting over several years. The majority of the deaths occurred amongst the lower classes, with the poorest third of the population gaining all their nutrition from potatoes alone, the crop which the blight affected. Therefore, when the potatoes blight occurred these people were left with practically no means of sustenance.
Solution:
Approximately how many years did the crisis of the Great Frost last?