Question

In a group of 400 people 250 can speak Hindi and 200 can speak Malayalam how many people can speak both Hindi and Malayalam​

Answer 1

Ans=250+200-400=50

(USING PROPERTY OF SETS)

MATK BRAINLIEST.

FOLLOW.

Answer 2

Let H and E is the set of people speaking Hindi and English respectively.  

It is given that  

People speaking Hindi or English, n(H ∪ E) = 400,  

Hindi Speaker, n(H) = 250,  

English speaker n(E) = 200.  

People can speak both Hindi and English, n(H ∩ E) = ?  

Use formula  

n ( H ∪ E ) = n ( H ) + n ( E ) – n ( H ∩ E )  

Plug the values we get  

400 = 250 + 200 - n ( H∩ E )  

n ( H ∩ E) = 450 – 400 = 50