Question

A fish and game worker catches, tags, and releases 120 trout in a lake. Later, she catches 84 trout and finds tags on 30 of them. Estimate the number of trout in the lake.

A.43
B.234
C.336
D.3600
Is it C?

Answer 1

30/84 = 35.7%
so, 120 is 35.7% of the population.
It is indeed 336.