This task is about writing a correct answer for the reading comprehension task. Based on the information provided in a given passage, you should identify the shortest continuous text span from the passage that serves as an answer to the given question. Avoid answers that are incorrect or provides incomplete justification for the question.

[Q]: Passage: There were 158,349 households, of which 68,511 (43.3%) had children under the age of 18 living in them, 69,284 (43.8%) were opposite-sex married couples living together, 30,547 (19.3%) had a female householder with no husband present, 11,698 (7.4%) had a male householder with no wife present. There were 12,843 (8.1%) unmarried opposite-sex partnerships, and 1,388 (0.9%) same-sex married couples or partnerships. 35,064 households (22.1%) were made up of individuals and 12,344 (7.8%) had someone living alone who was 65 years of age or older. The average household size was 3.07. There were 111,529 families (70.4% of all households); the average family size was 3.62. Question: What was the average family size?
[A]: 3.62


[Q]: Passage: KU's Edwards Campus is in Overland Park, Kansas. Established in 1993, its goal is to provide adults with the opportunity to complete college degrees. About 2,100 students attend the Edwards Campus, with an average age of 32. Programs available at the Edwards Campus include developmental psychology, public administration, social work, systems analysis, information technology, engineering management and design. Question: What is the average age of students on KU's Edwards Campus?
[A]: 32


[Q]: Passage: The discovery of gold in Victoria in mid 1851 led to the Victorian gold rush, and Melbourne, which served as the major port and provided most services for the region, experienced rapid growth. Within months, the city's population had increased by nearly three-quarters, from 25,000 to 40,000 inhabitants. Thereafter, growth was exponential and by 1865, Melbourne had overtaken Sydney as Australia's most populous city. Additionally, Melbourne along with the Victorian regional cities of Ballarat and Geelong became the wealthiest cities in the world during the Gold Rush era. Question: Melbourne and which other regional cities became the wealthiest cities in the world during the Gold Rush era?
[A]:
Ballarat and Geelong