Question

if 1.5 million people are in a 2 blocks by 2 blocks area of times square on new years eve, approximately what is the density per square block

Answer 1

Density per square block means the area:

Area = Length x width = 2 x 2 = 4 square blocks.

Now for density divide the population by the area:

1.5 million people / 4 square blocks = 0.375 million people per square block

0.375 million = 375,000