Which expression has a value of 18?
1 answer:
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Answers:
- 10 people absent
- 15 people working in the field only
- See the below image for the venn diagram
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Explanation:
- 35 people are working in both places.
- 50 work in the field or both, so 50-35 = 15 people work solely in the field.
- 65 work in the office or both, so 65-35 = 30 people work solely in the office
So far that accounts for 15+30+35 = 80 people who work in the field, the office, or both.
The remaining 90-80 = 10 people are absent.
The venn diagram is below.
