A Gardener Decides to Estimate the Population of Cabbage Butterflies

Multiple Choice

A gardener decides to estimate the population of cabbage butterflies in her garden.She captures and marks 80 butterflies with a dot of red nail polish.She sets traps, and over the next three weeks captures 250 butterflies.Of these, 50 have red dots.What is the estimated population of cabbage butterflies in this garden?

A) 250
B) 300
C) 330
D) 400
E) 4,000