11. The Universal Magazine of Knowledge and Pleasure (Vol. 1, 1747) asked the following question. "What number is that, whose quarter shall be 9 more than the whole?"
What is the correct answer?
A 12
B 9
C 8
D -8
E -12
11. E Let the correct answer be $x$. Then $\frac{x}{4}=9+x$. So $\frac{3 x}{4}=-9$. Therefore $x=-\frac{4 \times 9}{3}=-12$.