Question

A road had sections that are 5 meters long.If the road is 0.5 km Long, how many sections are there?

Answer 1

Let's work in km.  To do this, first convert 5 m to km:  

5 m      1 km
------ * ------------ = 0.005 km
   1       1000 m
                                                                                       0.5 km
Then divide 0.5 km by 0.005 km:     (# of sections) = -------------- = 100 sections
                                                                                     0.005 km