Question 296250
 A conservationist catches 890 deer, tags them and lets them go. 
Later, 356 deer are caught; 178 of them are tagged. 
How many deer are in the preserve?
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pop count/caught and tagged = #caught including tagged/#tagged
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Your Problem:
pop count/890 = 356/178
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pop count = 890(356/178)
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pop count = 1780 deer
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Cheers,
Stan H.
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