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1. Of 35 students in my class, 11 do karate, 11 play piano, and 20 do tennis. 4 students play piano and do tennis, 3 students do karate and play piano, 5 students do tennis and practice karate, and 3 student do none of these. How many students do all 3?

 Jun 3, 2021
 #1
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Here is a Venn Diagram:

 

 Jun 3, 2021

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