Tuesday
March 31, 2015

Homework Help: math

Posted by Lisa on Tuesday, April 15, 2008 at 2:25pm.

In a community of 416 people, each person owns a dog or a cat or both. If there are 316 dog owners and 280 cat owners, how many of the dog owners own no cat?
The choices are:
36
100
136
180
316
I think the answer is either 180 or 316, but I'm not sure.

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