Question

in a group of 400 people,250can speak hindi and 200 speak English,how many people can speak both hindi and english​

Answer 1

50 people can speak both hindi and english

Answer 2

Answer:

let H be the set of people  who speak hindi

let E be the set of people  who speak English

Step-by-step explanation:

number of people who speak Hindi n(H) =250

number of people who speak English n(E) =200

total number of people n(HUE)=400

number of people who speak both English and Hindi (n(H∩E)=?

now

n(HUE) = n(H) + n(E) -n(H∩E)

400 = 250 + 200 - n(H∩E)

400 = 450  -n(H∩E)

n(H∩E) = 450 - 400 = 50

so 50 peoples  speak both English and Hindi