Which of the figures below represents the largest house ( in square foot) that Robert could build if he had $1

Question

If a house costs $100 per square feet to build, which of the figures below represents the largest house ( in square feet) that Robert could build if he had $ 110.00

1.110
2.1,000
3. 1,100
4. 10,000
5. 11,000

Answer 1

1.

Answer 2

All the answers are wrong. As per the question, Robert has $100 + $10. $100 will buy Robert 1 sqft. $10 (1/10 of $100) will buy Robert 1/10 of a sqft. So the biggest house Robert can buy is 1.1 sqft.