Question

In a group of 400 people, 250 can speak Hindi and 200 can speak English. How many people can speak both Hindi and English?

Answer 1

Here, number of people speakinhg Hindi (`n(A)) = 250`
Number of people speakinhg English`(n(B)) = 200`
Total number of people`(n(AuuB)) = 400`
Number of people those speak both languages, `n(AnnB) = n(A)+n(B)-n(AuuB) = 200+250-400 = 50`