in a group of 400 people 250 can speak hindi and 200 can speak English and how many people can speak both hindi and English
Answers
Answered by
1
Answer:
50 can only speak both
Step-by-step explanation:
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Answered by
3
Answer:
50people
Step-by-step explanation:
Let H be the set of people who speak Hindi, and E be the set of people who speak English
∴n(H∪E)=400,n(H)=250,n(E)=200
n(H∩E)=?
We know that:
n(H∪E)=n(H)+n(E)−n(H∩E)
∴400=250+200−n(H∩E)
⇒400=450−n(H∩E)
⇒n(H∩E)=450−400
∴n(H∩E)=50
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