Let H be the set of people who speak Hind, and E be the set of people who speak English.
`therefore n(H cup E)= 500 ,n(H)= 350,n(E)=300`
We have to find `n(H cap E)`.
Now `n (H cup E)=n(H)+n(E)-n(H cap )`
`therefore 500=350 + 300 -n (H cap E)`
`rArr 500=650 -n (H cap E)`
`therefore n(H cap E )=150`
Thus, 150 people can speak both Hindi and English. Number of people who speak Hindi only `= n(H) - n(H cap E) `
= 350 150 = 200 Number of people who speak English only `= n(E) n(H cap E)`
= 300 - 150 =150