Posted by **pam** on Friday, April 26, 2013 at 10:59pm.

To determine the number of trout in a lake, conservationist catches 161 trout, tags them and throuws them back into the lake. Later, 39 trout are caught: 13 of them are tagged. How many trout would the conservationist expect to be in the lake?

- math -
**Reiny**, Friday, April 26, 2013 at 11:07pm
from the 13 tagged out of the 39 caught ...

13/39 = 1/3

so (1/3)x = 161

x = 483

- math -
**Anonymous**, Saturday, June 20, 2015 at 2:47pm
Two hundred trout were tagged and then released into a pond. Later 60 trout were caught and examined, and 8 of the 60 trout were found to have tags. Estimate the number of trout in the pond.

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