Rain drops fall on a tile surface at a density

Question

of 4585 drops/ft2
. There are 15 tiles/ft2
.
How many drops fall on each tile?
Answer in units of drops/tile.

Answer 1

4585/15

Answer 2

or to do it the physics way:

(4585 drops/ft^2)*(1 ft^2/15 tiles)

= (4585 drops/ 15 tiles)

Answer 3

Rain drops fall on a tile surface at a density
of 4783 drops/ft2
. There are 12 tiles/ft2