MathDB

20

Part of 1988 AMC 8

Problems(1)

1988 AJHSME #20

Source:

6/21/2011
The glass gauge on a cylindrical coffee maker shows that there are 45 cups left when the coffee maker is 36%36\% full. How many cups of coffee does it hold when it is full?
[asy] draw((5,0)..(0,-1.3)..(-5,0)); draw((5,0)--(5,10)); draw((-5,0)--(-5,10)); draw(ellipse((0,10),5,1.3)); draw(circle((.3,1.3),.4)); draw((-.1,1.7)--(-.1,7.9)--(.7,7.9)--(.7,1.7)--cycle); fill((-.1,1.7)--(-.1,4)--(.7,4)--(.7,1.7)--cycle,black); draw((-2,11.3)--(2,11.3)..(2.6,11.9)..(2,12.2)--(-2,12.2)..(-2.6,11.9)..cycle);[/asy] (A) 80(B) 100(C) 125(D) 130(E) 262 \text{(A)}\ 80\qquad\text{(B)}\ 100\qquad\text{(C)}\ 125\qquad\text{(D)}\ 130\qquad\text{(E)}\ 262