Hi,
You did not provide the length of paper clip but i searched this exercise to find the length of the paper clip as So, a small paperclip measures 3.0 cm so i will answer your question according to this length.
The size of a human cell is around 30um and the question is asking that how many would fit along the length of the paper clip measuring 3cm.
3 cm = 30000 microns
= 30000/30
= 1000 cells.
So, if we line up 1000 human skins cells side-by-side, they would fit along the length of the paperclip.
Note: If the length of paper clip is different in your excercise like 1 cm etc, simply multiply the 1 with 10000 and divide the resultant value with 30, this way you can get cell number for the length of any clip.
Hope it helps!
