In a study, a fish and game department worker catches, tags, and frees 124 catfish in a lake. A few weeks later he catches and frees 140 catfish. 35 have tags. Estimate the number of catfish in a lake. (Hint: set up and solve a proportion).

Answer 1

35 / 124 = n / 140

Answer 2

oops...backwards

35 / 124 = 140 / n

Answer 3

I forgot to add in

A: 31

B:397

C:496

D:39.5

but thanks for tryn to help

Answer 4

The correct answer is 496