The diameter of the average cell in the human body is 1x10^5meters. The diameter of a grain of sand is about 2x10^4 meters. How many times longer is the diameter of a grain of sand than the diameter of the average cell in the human body. show the work of how you got the answer.

I believe the correct given values are:

diameter of average cell = 1 x 10^-5 m

diameter of average sand = 2 x 10^-4 m

To solve for this, simply take the ratio:

diameter of sand / diameter of average cell = 2 x 10^-4 m / 1 x 10^-5 m = 20

Therefore the sand is 20 times larger than the cell.