Final answer:
Gatsby earned the money for his house in 2 years.
Step-by-step explanation:
In the novel The Great Gatsby by F. Scott Fitzgerald, Gatsby's extravagant house is a symbol of his wealth and success. When asked how long it took him to earn the money for the house, Gatsby replies, 'in 2 years.' This suggests that Gatsby was able to accumulate a vast amount of wealth in a relatively short period of time.