every 20m along a street there are lamppost from beginning to end.
a) the street is 800m long. How many lamppost are there on the street?
b) how many 20m spaces are there along the street?
c) Frankie lives between the lampost 21 and 22. How far from the beginning of the road does his property begin?
the 2nd pole is 20m away
the 3rd is 40m
and so on
a) To find the number of lampposts on the street, divide the length of the street by the distance between each lamppost. In this case, the distance between each lamppost is 20m. So, divide the length of the street (800m) by 20m:
Number of lampposts = Length of street / Distance between each lamppost
= 800m / 20m
= 40 lampposts
Thus, there are 40 lampposts on the street.
b) To find the number of 20m spaces along the street, divide the length of the street by 20m:
Number of 20m spaces = Length of street / 20m
= 800m / 20m
= 40 spaces
There are 40 20m spaces along the street.
c) Since there is a lamppost every 20m along the street, we know that Frankie's property falls between lamppost 21 and 22. Therefore, his property starts after 20m from the beginning of the road.