jasminejohnson4330
20.11.2020 •
Mathematics
In a survey of some people, 73% like to drink tea, 85% like to drink coffee and 65% like
to drink tea as well as coffee. If 210 people like neither tea nor coffee, then find the total
number of people taken part in the survey. Also, by a Venn-diagram show how many of
them like at least one of the given drink?
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Ответ:
1 and 3
Step-by-step explanation:
Step 1 is clearly elaborated. Tax is impliedd on the discounted price.
In step 3, the steps of deductions are skipped.
Like 1 + 10% = 110% and 1 - 20% = 80%
Step 2 is simply wrong. Because the percentages are implied on different values.