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A survey revealed that 50 people liked coffee and 40 liked tea. Both these figures include 35 who like both coffee and tea . Finally, ten did not like either coffee or tea. How many people in all responded to the survey |
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Answer» Step-by-step explanation:Draw a Venn diagram: There's an overlap of 35 PEOPLE that LIKE both coffee and tea. That means there are 15 people that only like coffee and 5 people that only like tea. And there are 10 people that like neither. Then add up all the people: 15 + 35 + 5 + 10 = 65 And for the people that don't like coffee, just subtract the 50 that do: 65 - 50 = 15 (Or you can add the 5 that only like tea and the 10 that like neither = 15) Answer: 65 people surveyed 15 do not like coffee |
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