Mathematics, 24.06.2021 06:00 noor2005
e) In a survey of a group of people, it was found that 80 people liked to drink tea, 55 liked coffee, 25 liked both and 30 people did not like both tea and coffee. (i) Illustrate the above information in a Venn-diagram (ii) How many people were surveyed? (iii) How many people liked tea only? (iv) How many people liked coffee only? with full process
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e) In a survey of a group of people, it was found that 80 people liked to drink tea, 55 liked coffee...
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