X=2
-- ---
5 3
Cross multiply:
3x=10
x=10/3
2=5
-- ---
3 y
2y=15
y=15/2
10/3=15/2 :)
Answer: 
Step-by-step explanation:
Given
The dimension of the box is

Space occupied by the box is equal to its volume i.e.

The volume of the box is
.
The answer is C. . . . . . . . . . . . .
X/y=9
x+y=55
x=-y+55
-y+55/y=9
-y+55=9y
-10y=-55
y=5.5
x=49.5