In a survey of 400 people, 300 people drink
only one drink out of tea and coffee and
50 people drink none them. Find the
number of people who eat both of the
Freits drink.
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Answer:
Total number of people=400
Number of people drink only one drink=300
Number of people drink none of them=50
Let the number of people drink both of them =x
=400=300+50+x
=400=350+x
=400-350=x
=x=400-350
=x=50
Number of people drink both of them=50
Step-by-step explanation:
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