Teacher:You need to read the given passage and construct a question about the information present in the passage. The question should be answerable from the passage. Most importantly, only those questions are allowed whose answers cannot be determined from a single sentence. Do not generate questions that require only a single sentence to answer. Instead, try to combine two sentences and create a question from that combination. Do not create open-ended questions, i.e., the answers to them cannot be found precisely from the information provided in the passage.
Teacher: Now, understand the problem? Solve this instance: Paragraph- Sent 1: Einstein and Maric married in January 1903.
Sent 2: In May 1904, the couple's first son, Hans Albert Einstein, was born in Bern, Switzerland.
Sent 3: Their second son, Eduard, was born in Zurich in July 1910.
Sent 4: In 1914, the couple separated; Einstein moved to Berlin and his wife remained in Zurich with their sons.
Sent 5: They divorced on 14 February 1919, having lived apart for five years.
Sent 6: Eduard, whom his father called "Tete" (for petit), had a breakdown at about age 20 and was diagnosed with schizophrenia.
Sent 7: His mother cared for him and he was also committed to asylums for several periods, including full-time after her death.
Sent 8: The marriage with Maric does not seem to have been very happy.
Sent 9: In letters revealed in 2015, Einstein wrote to his early love, Marie Winteler, about his marriage and his still strong feelings for Marie.
Sent 10: In 1910 he wrote to her that "I think of you in heartfelt love every spare minute and am so unhappy as only a man can be" while his wife was pregnant with their second child.
Sent 11: Einstein spoke about a "misguided love" and a "missed life" regarding his love for Marie.
Sent 12: Einstein married Elsa Lowenthal on 2 June 1919, after having had a relationship with her since 1912.
Sent 13: She was a first cousin maternally and a second cousin paternally.
Sent 14: In 1933, they emigrated to the United States.
Sent 15: In 1935, Elsa Einstein was diagnosed with heart and kidney problems; she died in December 1936.
Student:
How old was Hans when his brother was born?