Question

central park in new york is a rectangular with a lenght of 2.5 miles and a width if 0.5 miles during an afternoon, its population density is about 15 people per acre. find the number of people in the park that afternoon. one acre is equal to 1/640 square mile.

Answer 1

Area of central park = 2.5 × 0.5 = 1.25 square mile

1 acre = 1/640 square mile
1.25 square mile = 1.25 ÷ 1/640 = 800 acre

Number of people in the park = 800 ÷ 15 = 53.3 ≈ 53 people