Question 662297
Park rangers catch, tag, and release 200 tule elk back into a wildlife refuge.
 Two weeks later they observe a sample a sample of 150 elk, of which 5 were tagged.
 Assuming that the ratio of tagged elk in the sample holds for all elk in the refuge, how many elk are there in the park?
:
Let e = number of Elks in the park
:
{{{e/150}}} + {{{200/5}}}
5e = 150*200
5e = 30000
e = 30000/5
e = 6000 elk in the park