1. x/5

Question

_______ _____
y/20|_______| ________________| | Y
x/25 y/4 |_____________________|
Tile X
Bathroom
Using the diagram above(that i tried to replicate out of ascii), if rectangular tiles are used to completely cover the L shaped bathroom floor without overlap how many rectangular tiles are needed?
F)125
G)150
H)175
J)200
K)225
2. If x(b-c)=y+x and 2b=3c=7, then y/x=
A)1/7
B)1/6
C)1/3
D)5/7
E)2/3
3. Three small circles of equal area are on line segment AB with centers C,D, and E. Each of the three small circles is tangent to two other circles. The area of the large circle with center D is 900 pi. What is the circumference of the circle with center C?
Note: I cant replicate the diagram cuz its a cricle. But the diagram is a large circle with a line across the middle and three circles(labeled C,D and E in that order) going straight through the line with dots in the middle.
A)5 pi
B)10 pi
C)20 pi
D)40 pi
E) 60 pi

Answer 1

I know the diagram is a bit mucked up. So im gonna say the lengths of the shaped. The tile is a rectangle with a length of x/25 and the width is y/20. The bathroom is harder to describe but i'll try. Its an L and the top of the L 's length is y/4 and the bottom is just y. The left side of the L is x and the bottom right side is x/5.