A group of students were asked what kind of computer they have at home. The results are aummarized in the Venn diagram below.
1. How many have laptops?
2. How many have desktops only?
3. How many have laptops or desktops?
4. How many have laptops and desktops?
5. How many students were asked?
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Answer:
1) 20
2) 12
3) 20 or 12
4) B
5) 25
Answer