Question 1121832
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The number of vendors who sell EITHER carrots OR tomatoes is  6 + 13 - 3 = 16.



    I subtracted 3 from the sum of 6 + 13, because those who cell both carrots and tomatoes were counted twice in this sum.



Hence,  the number of vendors who sell NEITHER carrots NOR tomatoes is  29 - 16 = 13.
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&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF=http://www.algebra.com/algebra/homework/word/misc/Counting-elements-in-sub-sets-of-a-given-finite-set.lesson>Counting elements in sub-sets of a given finite set</A>

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