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Could you please solve it clearly n let me know the answer for it with diagram

Could you please solve it clearly n let me know the answer for it with diagram

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1 Answers

Arun
25750 Points
5 years ago
If we assume that those who answered that they like two drinks - i.e. milk and coffee, coffee and tea, etc. like atleast two beverages - i.e. they could either like the third beverage or or not, we can solve this as follows:
 
Those who like all the drinks - 10
Those who like milk and coffee only - 20 - 10 (those who like all of them) = 10
Those who like coffee and tea only = 30-10 = 20
Those who like milk and tea only - 25-10 - 15
Those who like milk alone = 12
Those who like coffee alone = 5
Those who like tea alone = 8
 
The sum of these numbers is 80. Therefore the students who drank none of the beverages is 100-80 = 20.

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