On Tony's map, the distance from Saint John, NB to St. John's, NL is $21 \mathrm{~cm}$. The actual distance between these two cities is $1050 \mathrm{~km}$. What is the scale of Tony's map?
(A) 1:50 000
(B) 1:200 000
(C) 1:500 000
(D) 1:2 000000
(E) 1:5000 000
The scale of the map is equal to the ratio of a distance on the map to the actual distance. Since the distance between Saint John and St. John's is $21 \mathrm{~cm}$ on the map and $1050 \mathrm{~km}$ in reality, then the scale of the map is equal to

$$
21 \mathrm{~cm}: 1050 \mathrm{~km}=0.21 \mathrm{~m}: 1050000 \mathrm{~m}=21: 105000000=1: 5000000
$$

Answer: (E)

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