Question

A man is 1.7 m long. an amoeba is 17 µm long. how does the length of the man compare to the length of the amoeba?

Answer 1

The question deals with the knowledge of the standard unit meter. By convention, micrometer or µm has been assigned to mean $1* 10^{-6}$ meters. Therefore, 17 µm is equal to $17* 10^{-6}$ meters

We divide the height of the man with the length of the amoeba to arrive at a comparison.

$\frac{1.7}{17* 10^{-6} } =100,000$

ANSWER: The man is therefore 100,000 times longer than the amoeba.

Answer 2

Height of man= 1.7 meters
Length of Amoeba=17 μm
As 1μ (micro) = 10^-6
Which is 1/100,000.
Now length of Amoeba= 17 x 10^-6 m 
Which means that man is 100,000 longer than amoeba.
Answer: Man is 100,000 times longer than Amoeba.