musterniraibrahim musterniraibrahim

09-12-2019
Mathematics

contestada

In a group of 60 people,27 like cold drinks and 42 like hot drinks and each person likes at least one of the two drinks.How many likes both coffee and tea?

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aashishdada3 aashishdada3

22-07-2022

Answer:

let the people who like cold drink and hot drink be n(c) and n(h) repectively.

n(U)=n(c)+n(h)-n(cnh)

60=27+42-n(cnh)

n(cnh)=69-60

n(cnh)=9

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