Question 500928
An aquarium is 21 inches long, 15 inches wide and 24 inches high.
 The volume of water in the aquarium is 5355 cubic inches.
 How deep is the water?
;
let d = the depth of the water
:
21 * 15 * d = 5355 cu/in
315d = 5355
d = {{{5355/315}}}
d = 17 inches